Troubleshooting
Drying Tumblers 25 Pound Capacity 30 Pound Capacity 35 Pound Capacity 55 Pound Capacity Starting Serial No. 0602004144 Refer to Page 7 for Model Numbers
1 SELEC TEMP T
2 INSER COIN T
3 PUSH START
HIGH TEMP
MED TEMP
25 C
STAR T LOW TEMP
NO HEAT
www.comlaundry.com
Part No. 70380601R3 September 2009
Table of Contents
Section 1 – Safety Information .......................................................... Locating an Authorized Service Person ............................................... Safety Warnings and Decals................................................................. Safety Precautions for Servicing Tumblers ..........................................
4 6 6 6
Section 2 – Introduction ..................................................................... 7 Model Identification ............................................................................. 7 Serial Plate Location............................................................................. 9 Customer Service.................................................................................. 9 Wiring Diagram .................................................................................... 9 How a Tumbler Works ......................................................................... 10 Section 3 – Troubleshooting............................................................... 11 1. Tumbler Does Not Start ........................................................... 12 2. Motor Does Not Start............................................................... 13 3. Motor Overload Protector Cycles Repeatedly ......................... 14 4. Motor Runs But Cylinder Does Not Turn................................ 15 5. Motor Does Not Stop ............................................................... 16 6. Burner Does Not Ignite ............................................................ 17 7. Burner Ignites and Goes Out Repeatedly................................. 20 8. Burner Does Not Shut Off ....................................................... 21 9. Clothes Do Not Dry ................................................................. 22 10. Tumbler Overheating ............................................................... 24 11. Burner Not Burning Properly................................................... 25 12. Loading Door Opens During Operation................................... 26 13. Cylinder Continues to Spin with Door Open ........................... 27 14. Coin Does Not Fall into Coin Vault or Coin Drop Sensor Does Not Register that Coin Has Been Entered28 Section 4 – Adjustments ..................................................................... 29 15. Loading Door Switch ............................................................... 29 16. Loading Door Strike................................................................. 29 Section 5 – Micro Display Control (MDC) Troubleshooting.......... 30 Models with BC, BL, BX and BY Control Suffixes 17. Coins Ignored When Entered................................................... 30 18. Control Has No Display........................................................... 31 19. Door Open Indicator ................................................................ 33 20. Motor Will Not Start/Run ........................................................ 35 21. Unit Will Not Heat – Gas......................................................... 39 22. Unit Will Not Heat – Steam..................................................... 42 23. Unit Will Not Heat – Electric .................................................. 45 24. Error Codes .............................................................................. 48 Gas and Steam Models Control Circuit Schematic.................................................................49 Control Circuit Connection ...............................................................50 Gas and Steam Models Control Box Schematic .....................................................................51 Control Box Connection ...................................................................52 © Copyright 2009, Alliance Laundry Systems LLC All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the expressed written consent of the publisher. 70380601
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Gas and Steam Models Control Circuit Schematic.................................................................53 Gas and Steam Models Control Circuit Schematic.................................................................54 Gas and Steam Models Control Box Schematic .....................................................................55 Control Box Connection ...................................................................56 Electric Models Control Circuit Schematic.................................................................57 Control Circuit Connection ...............................................................58 Electric Models Control Box Connection ...................................................................59 Control Box Schematic .....................................................................60 Section 6 – NetMaster Troubleshooting ........................................... Models with NC, NR, NX, NY, ZC, ZR, ZX and ZY Control Suffixes 25. No Infra-red (IR) Communication ........................................... 26. Coins Ignored When Entered................................................... 27. Control Has No Display........................................................... 28. Door Open Indicator ................................................................ 29. Motor Will Not Start/Run ........................................................ 30. Unit Will Not Heat – Gas......................................................... 31. Unit Will Not Heat – Steam.....................................................
61 61 62 63 65 67 71 74
Section 7 – Hybrid Timer Control Troubleshooting ....................... 76 Models with QT, SD and SX Control Suffixes 32. Coins Ignored When Entered................................................... 76 33. Control Has No Display – OPL Models .................................. 77 34. Display Flashes “dr” With Door Closed – OPL Models ......... 80 35. Vend Satisfied, No In Use LED – Coin Models ...................... 83 36. In Use LED Lit, No Motor Run – Coin Models ...................... 87 37. Motor Will Not Start/Run – Coin Models ............................... 90 38. Motor Will Not Start/Run – OPL Models................................ 93 39. Unit Will Not Heat – Gas – Coin Models................................ 96 40. Unit Will Not Heat – Gas – OPL Models ................................ 99 41. Unit Will Not Heat – Electric OPL.......................................... 102 42. Error Codes .............................................................................. 106 Section 8 – On Premise Micro Control Troubleshooting................ 107 Models with OM Control Suffix 43. Control Has No Display........................................................... 108 44. Door Open Indicator ................................................................ 110 45. Motor Will Not Start/Run ........................................................ 113 46. Unit Will Not Heat – Gas......................................................... 116 47. Unit Will Not Heat – Steam..................................................... 119 48. Unit Will Not Heat – Electric .................................................. 122 49. Error Codes .............................................................................. 125
2
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Section 9 – Quantum Control Troubleshooting............................... 126 Models with LC, LX, LY, WC, WX and WY Control Suffixes 50. No Infrared Communication .................................................... 127 51. Coins Ignored When Entered................................................... 128 52. No Display ............................................................................... 129 53. “Door Open” Indicator............................................................. 131 54. No Start/Run ............................................................................ 133 55. Unit Will Not Heat – Gas......................................................... 135 56. Unit Will Not Heat – Steam..................................................... 138 57. Unit Will Not Heat – Electric .................................................. 140 58. CE Models No Display ............................................................ 143 59. CE Models “Door Open” Indicator.......................................... 145 60. CE Models No Start/Run ......................................................... 147 61. CE Models Will Not Heat – Gas/Steam................................... 149 62. CE Models Will Not Heat – Electric ....................................... 152
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Section 1 Safety Information Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION”, “WARNING”, and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine.
DANGER Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.
WARNING Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death.
WARNING • Failure to install, maintain and/or operate this product according to the manufacturer’s instructions may result in conditions which can produce serious injury, death and/or property damage. • Do not repair or replace any part of the product or attempt any servicing unless specifically recommended or published in this Service Manual and unless you understand and have the skills to carry out the servicing. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the product is properly grounded and to reduce the risk of fire, electric shock, serious injury or death. W006R2
CAUTION Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property damage.
Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions. IMPORTANT: The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed. NOTE: The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related. In the interest of safety, some general precautions relating to the operation of this machine follow.
4
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Safety Information
IMPORTANT INFORMATION: During the lifetime of a tumbler, it may require service. The information contained in this manual was written and is intended for use by qualified service technicians who are familiar with the safety procedures required in the repair of a tumbler, and who are equipped with the proper tools and testing equipment.
NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution and carefulness are factors which CANNOT be built into this tumbler. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumbler. Always contact your dealer, distributor, service agent or the manufacturer on any problems or conditions you do not understand.
WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Never start the tumbler with any guards/ panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W240
WARNING Repairs that are made to your products by unqualified persons can result in hazards due to improper assembly or adjustments subjecting you, or the inexperienced person making such repairs, to the risk of serious injury, electrical shock, or death. W007
CAUTION If you or an unqualified person perform service on your product, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures. W008
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Safety Information
Locating an Authorized Service Person Alliance Laundry Systems is not responsible for personal injury or property damage resulting from improper service. Review all service information before beginning repairs. Warranty service must be performed by an authorized technician, using authorized factory parts. If service is required after the warranty expires, Alliance Laundry Systems also recommends contacting an authorized technician and using authorized factory parts.
Safety Warnings and Decals SAFETY WARNINGS and decals have been provided in key locations to remind you of important precautions for the safe operation and maintenance of your tumbler. Please take the time to review these warnings before proceeding with service work. All decals have been designed and applied to withstand washing and cleaning. Decals should be checked periodically to be sure they have not been damaged, removed, or painted.
6
Safety Precautions for Servicing Tumblers Prior to servicing tumbler: •
Disconnect electrical service and “lockout” to prevent unintentional connection.
•
Shut off supply gas valve.
•
Allow machine to cool prior to servicing.
After servicing tumbler: •
Control/access panels must be reinstalled.
•
Motor/drive/belt guards must be reinstalled.
•
Contactor/junction/accessory box covers must be reinstalled.
•
Use a non-corrosive leak detection solution to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS!
•
The loading door switch, lint door switch and airflow switch must be operating properly.
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Section 2 Introduction Model Identification Information in this manual is applicable to these models: Gas
Steam
Electric
25 Pound
CHD25G2-CA025L CHD25G2-CA025N CHD25G2-CT025L CHD25G2-CT025N CHD25G2-CU025L CHD25G2-CU025N DR25G2-BA025L DR25G2-BA025N DR25G2-BT025L DR25G2-BT025N DR25G2-BU025L DR25G2-BU025N GA025L GA025N GT025L GT025N GU025L GU025N HA025L HA025N
HT025L HT025N HU025L HU025N IPD25G2-IT025L IPD25G2-IT025N KA025L KA025N KT025L KT025N KU025L KU025N LA025L LA025N LT025L LT025N LU025L LU025N PA025L
PA025N PT025L PT025N PU025L PU025N SA025L SA025N ST025L ST025N SU025L SU025N UA025L UA025N UT025L UT025N UU025L UU025N YT025L YT025N
CHD25S2-CT025S CHD25S2-CU025S DR25S2-BT025S DR25S2-BU025S GT025S GU025S HT025S HU025S IPD25S2-IT025S KT025S KU025S LT025S LU025S PT025S PU025S ST025S SU025S UT025S UU025S YT025S
CHD25E2-CT025E CHD25E2-CU025E DR25E2-BT025E DR25E2-BU025E GT025E GU025E HT025E HU025E IPD25E2-IT025E KT025E KU025E LT025E LU025E PT025E PU025E ST025E SU025E UT025E UU025E YT025E
30 Pound
CHD30G2-CA030L CHD30G2-CA030N CHD30G2-CT030L CHD30G2-CT030N CHD30G2-CU030L CHD30G2-CU030N DR30G2-BA030L DR30G2-BA030N DR30G2-BT030D DR30G2-BT030L DR30G2-BT030N DR30G2-BU030L DR30G2-BU030N GA030L GA030N GT030L GT030N GU030L GU030N
HA030L HA030N HT030D HT030L HT030N HU030L HU030N IPD30G2-IT030L IPD30G2-IT030N KT030L KT030N LA030L LA030N LT030L LT030N LU030L LU030N PA030L PA030N
PT030L PT030N PU030L PU030N SA030L SA030N ST030D ST030L ST030N SU030L SU030N UA030L UA030N UT030L UT030N UU030L UU030N YT030L YT030N
CHD30S2-CT030S CHD30S2-CU030S DR30S2-BT030S DR30S2-BU030S GT030S GU030S HT030S HU030S IPD30S2-IT030S KT030S LT030S LU030S PT030S PU030S ST030S SU030S UT030S UU030S YT030S
CHD30E2-CT030E CHD30E2-CU030E DR30E2-BT030E DR30E2-BU030E GT030E GU030E HT030E HU030E IPD30E2-IT030E KT030E LT030E LU030E PT030E PU030E ST030E SU030E UT030E UU030E YT030E
Models continued on next page.
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Introduction
Gas
35 Pound
55 Pound
Steam
AT035L AT035N CHD35G2-CA035L CHD35G2-CA035N CHD35G2-CT035L CHD35G2-CT035N CHD35G2-CU035L CHD35G2-CU035N DR35G2-BA035L DR35G2-BA035N DR35G2-BT035L DR35G2-BT035N DR35G2-BU035L DR35G2-BU035N GA035L GA035N GT035L GT035N GU035L GU035N
HA035L HA035N HT035L HT035N HU035L HU035N IPD35G2-IT035L IPD35G2-IT035N KA035L KA035N KT035L KT035N KU035L KU035N LA035L LA035N LT035L LT035N LU035L LU035N
PA035L PA035N PT035L PT035N PU035L PU035N SA035L SA035N ST035L ST035N SU035L SU035N UA035L UA035N UT035L UT035N UU035L UU035N YT035L YT035N
CA055L CA055N CT055L CT055N CU055L CU055N GT055L GT055N HA055L HA055N HT055D
HT055L HT055N HU055L HU055N IPD55G2-IT055L IPD55G2-IT055N KT055L KT055N SA055L SA055N ST055D
ST055L ST055N SU055L SU055N UA055L UA055N UT055L UT055N UU055L UU055N
AT035S CHD35S2-CT035S CHD35S2-CU035S DR35S2-BT035S DR35S2-BU035S GT035S GU035S HT035S HU035S IPD35S2-IT035S KT035S KU035S LT035S LU035S PT035S PU035S ST035S SU035S UT035S UU035S YT035S YU035S
Not Applicable
Electric AT035E CHD35E2-CT035E CHD35E2-CU035E DR35E2-BT035E DR35E2-BU035E GT035E GU035E HT035E HU035E IPD35E2-IT035E KT035E KU035E LT035E LU035E PT035E PU035E ST035E SU035E UT035E UU035E YT035E YU035E CT055E CU055E GT055E HT055E HU055E IPD55E2-IT055E KT055E ST055E SU055E UT055E UU055E
Includes models with the following control suffixes: 3O – DX4 OPL 3V – DX4 vended 3X – DX4 prep for coin BC – basic electronic, coin BL – basic electronic, central pay BX – basic electronic, prep for coin BY – basic electronic, prep for card DO – DMP OPL DV – DMP vended DX – DMP prep for coin
8
LC – network adaptable coin LX – network adaptable, prep for coin LY – network adaptable, prep for card NC – NetMaster coin NR – NetMaster card NX – NetMaster, prep for coin NY – NetMaster, prep for card OM – OPL micro QT – dual digital timer SD – single drop
SX – single drop, prep for coin WC – network ready coin WX – network ready, prep for coin WY – network ready, prep for card ZC – NetMaster network coin ZR – NetMaster network card ZX – NetMaster network, prep for coin ZY – NetMaster network, prep for card
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Introduction
Serial Plate Location When calling or writing about your product, be sure to mention model and serial numbers. Model and serial numbers are located on serial plate as shown.
1
TMB2098N
1
Serial Plate
Customer Service If literature or replacement parts are required, contact the source from which the machine was purchased or contact Alliance Laundry Systems at (920) 748-3950 for the name and address of the nearest authorized parts distributor. For technical assistance, call (920) 748-3121.
Wiring Diagram The wiring diagram is located inside the contactor or junction box. The wiring diagram part number is located in the lower portion of the electrical data on the serial plate.
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Introduction
How a Tumbler Works A tumbler uses heated air to dry loads of laundry. 1
When the motor is started, the exhaust fan pulls room temperature air in through the air intake at the rear of the tumbler and over the heat source (burner flame for gas, heating element for electric, and coil for steam).
2
The heated air moves into the cylinder, where it is circulated through the wet load by the tumbling action of the cylinder.
3
The air then passes through the lint filter, exhaust fan, and is vented to the outdoors.
1
2
3
T001CE3A
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Section 3 Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
IMPORTANT: Refer to wiring diagram for aid in testing tumbler components.
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Troubleshooting
1. Tumbler Does Not Start Tumbler Does Not Start
Is motor relay inoperative?
Yes
Test relay and replace if necessary.
No Is loading door open?
Close loading door completely.
Yes
No
Is drying timer in an off position (Hybrid Timer Models)?
Yes
Turn drying timer on.
Check that proper amount of coins are inserted.
Is coin drop inoperative?
Yes
Check power supply, or replace fuses.
Yes
Close and lock lint panel.
No
Is there a blown fuse on tumbler?
No
Yes
No
Is the lint panel open?
Yes
Yes
Press and hold START button for three seconds.
No
Is the electrical power off or circuit breaker or fuse blown?
No
Is there an incorrect amount of coins inserted into coin drop?
Is the START button not properly activated (Hybrid Timer Models)?
Yes
Check fuse (in junction box) and replace if necessary.
Test coin drop and replace if inoperative.
No TMB2036S
12
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Troubleshooting
2. Motor Does Not Start
Motor Does Not Start
Is the electrical power off or circuit breaker fuse blown?
Is there broken, loose, or incorrect wiring?
Yes
Refer to wiring diagram.
No Yes
Check power supply, or replace fuses.
Is the fan or fan motor binding?
Yes
Replace fan or motor assembly.
No No
Is the loading door switch or lint panel switch not closed or switch inoperative?
Yes
Close door, panel or test switch and replace if inoperative.
No Is the door switch improperly adjusted?
Replace cylinder, bearing, rollers, or motor assembly.
Yes
No
Yes
Refer to Adjustments Section for door switch adjustment.
Is the transformer inoperative?
Yes
Test and replace if necessary.
Yes
Test relay and replace if inoperative.
No
No
Is the start circuit not complete?
Is the cylinder or cylinder motor binding?
Yes
Press and hold START button for three seconds.
Is the motor relay inoperative?
No No
Is the motor inoperative?
Yes
Have motor tested and replace if inoperative.
Is the airflow switch inoperative (Hyrid Timer Models)?
Yes
Test switch, replace or adjust as required.
No TMB2037S
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Troubleshooting
3. Motor Overload Protector Cycles Repeatedly Motor Overload Protector Cycles Repeatedly
Yes
Is voltage correct? No Is clothes load too large?
Yes
Refer to Installation Manual for electrical requirements.
Remove part of load.
No Is clothes cylinder binding?
Yes
Check cylinder for binding.
No Check with local power company to ensure that wiring is adequate.
Yes
Is wiring adequate?
No
Yes
Is make-up air adequate?
Refer to Installation Manual for make-up air requirements.
No Is there lint buildup around tumbler or poor maintenance?
No
Clean lint accumulation on and around the motors.
Yes
Is there broken, loose or incorrect wiring?
Yes
Refer to wiring diagram.
TMB1904S
14
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Troubleshooting
4. Motor Runs But Cylinder Does Not Turn Motor Runs But Cylinder Does Not Turn
Is cylinder belt broken?
Yes
Replace cylinder belt.
Yes
Check cylinder for binding.
No
Is cylinder binding?
TMB1905S
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Troubleshooting
5. Motor Does Not Stop
Motor Does Not Stop
Is the door switch or lint panel switch not working properly?
Yes
Test switches and replace if inoperative.
No
Is coin drop not working properly?
Yes
Test coin drop and replace if inoperative.
No
Is wiring incorrect?
Yes
Refer to wiring diagram.
No
Is electronic control inoperative?
Yes
Replace electronic control.
Yes
Test relay and replace if inoperative.
No
Is motor relay inoperative?
TMB2038S
16
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70380601
Troubleshooting
6. Burner Does Not Ignite Burner Does Not Ignite
Is there an improper or inadequate exhaust system?
Is stove limit thermostat 2 inoperative? Yes
Refer to Installation Manual for exhaust system requirements.
Is there an insufficient gas supply?
No
Are there blown fuses or Yes tripped circuit breakers in external electric supply line?
No
Check fuses or circuit breaker.
No
No Is drying selector in the “Cool Down” portion of cycle?
Yes
Reset switch on microprocessor.
Are the orifices incorrect?
No
Yes
Test thermostat 2 and replace if inoperative.
Open partially closed gas shut-off valve, or correct low gas pressure. Check manifold pressure and adjust to Yes pressure specified on serial plate. If pressure cannot be obtained, have your local gas company check main gas pressure. Tumbler is equipped for type of gas specified on serial Yes plate. If orifices are different from that specified on serial plate, obtain and install correct orifices.
No Is the cabinet thermostat inoperative?
Yes
Test thermostat and replace if inoperative.
Is there lint buildup?
Yes
No
Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup.
No Is stove limit thermostat 1 inoperative?
Yes
Test thermostat 1 and replace if inoperative.
Is there inadequate ductwork and make-up air?
Yes
Refer to Installation Manual to ensure that ductwork and make-up air openings are sized accurately.
No No
Continued on next page TMB2187S-a
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Troubleshooting
6. Burner Does Not Ignite (continued) Continued from previous page
Is the airflow switch inoperative?
Is there a blown fuse on tumbler?
Yes
Test switch and replace if inoperative.
No
Is the lint panel not closed properly?
Yes
Unlock and open lint panel. Close panel ensuring a tight fit, then lock.
No Is there broken, loose or incorrect wiring?
Yes
Refer to wiring diagram.
Check fuse (located in control box) and replace if necessary.
Yes
No Is gas shut-off valve in the closed position?
Yes
Open shutoff valve.
No
Is the ground wire from Instant Electronic Ignition (IEI) board not connected to ground terminal?
Yes
Connect ground wire to ground terminal.
No No Is there an improper igniter to burner clearance?
Yes
Clearance should be 0.110 - 0.140 inch (2.79 - 3.55 mm).
No
Yes
Check valve coils and replace if necessary.
Yes
Replace IEI control.
No Is motor switch inoperative?
No
Are valve coils inoperative?
Is the IEI control inoperative?
Yes Replace motor.
No Continued on next page TMB2187S-b
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Troubleshooting
6. Burner Does Not Ignite (continued) Continued from previous page
Is there an inoperative microprocessor or hybrid timer?
Yes
Test and replace as needed.
No
Is wrong transformer configuration harness installed?
Yes
Check incoming voltage and install correct configuration harness.
No
Is Instant Electronic Ignition (IEI) control in safety lockout?
Yes
Reset IEI control by opening and closing loading door. (NonCE models only) Reset IEI by pressing reset button on back of unit. (CE models only)
TMB2187S-c
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Troubleshooting
7. Burner Ignites and Goes Out Repeatedly
Burner Ignites and Goes Out Repeatedly Is Yes there excessive igniter to burner clearance? Is there insufficient gas pressure?
Yes
Check gas supply and pressure.
Is the cabinet thermostat inoperative?
Yes
Test thermostat and replace if inoperative.
No
Is the exhaust system improper or inadequate?
No Does tumbler have improper orifices?
No
Is there broken, loose or incorrect wiring?
No
Is there inadequate make-up air?
No
Yes
Refer to Installation Manual for exhaust system requirements.
Tumbler is equipped for type of gas specified on serial Yes plate. If orifices are different from that specified on serial plate, obtain and install correct orifices.
Yes
Refer to wiring diagram.
Refer to Paragraph 43.
Refer to Installation Manual for make-up air requirements.
Yes
No
Is the thermistor inoperative?
Yes
Replace thermistor.
No
Is the control heater relay malfunctioning?
Yes Replace control.
No
Are the back draft dampers locked in close position?
Yes
Repair damper to working order.
No
20
TMB1908S
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Troubleshooting
8. Burner Does Not Shut Off Burner Does Not Shut Off
Are there impurities on gas valve seat, preventing valve from closing?
Yes
Replace gas valve.
No
Is wiring correct?
Yes
Refer to wiring diagram.
No
Is control heater relay malfunctioning?
Yes
Replace control.
TMB1909S
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Troubleshooting
9. Clothes Do Not Dry Clothes Do Not Dry
Is there enough heating time allocated for the load?
Yes
Start cycle again with enough time to dry load.
Does the burner ignite and go out repeatedly?
Refer to Paragraph 7.
Yes
No No
Is the burner not igniting?
Yes
Refer to Paragraph 6.
Is the drying selector improperly set?
Set selector for higher setting.
Yes
No No
Is there too much water in articles being dried?
Is the voltage incorrect? Yes
Remove excess water.
No
Is the clothes load too large?
Yes
Remove part of load. Maximum load is 25 pound dry weight (cotton load) for 25 pound Tumbler, etc.
No
Is the exhaust system improper or inadequate?
Yes
Refer to Installation Manual for exhaust system requirements.
Yes
Refer to Installation Manual for electrical requirements.
No
Is there inadequate make-up air?
Yes
Refer to Installation Manual for make-up air requirements.
No Is the exhaust duct to the outside blocked?
Yes
Clean duct to remove blockage.
No
Continued on next page
No
TMB1910S-a
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Troubleshooting
9. Clothes Do Not Dry (continued) Continued from previous page
Is the lint screen clogged?
Yes
Clean lint screen.
Yes
Adjust damper so it turns freely.
No
No
Is the thermistor inoperative?
Is the exhaust damper binding?
Yes
Replace thermistor.
Is the cylinder speed too fast?
Yes
Check belt is not riding on outer diameter of motor pulley.
No No
Is airflow switch bracket mounted properly?
Yes
Check for proper alignment: make sure locator pins are securely in place and tighten mounting screws.
TMB1910S-b
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Troubleshooting
10. Tumbler Overheating
Tumbler Overheating
Does tumbler have incorrect main burner orifices?
Is the thermistor sensor inoperative? Yes
Obtain and install correct orifices. No Is the exhaust damper binding?
No
Is gas Yes pressure too high or low?
Adjust gas pressure as specified on serial plate.
Yes
Refer to Installation Manual for make-up air requirements.
No
Is there lint buildup?
Yes
Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup.
No
Is the exhaust system restricted or inadequate?
No
Yes
Remove obstruction or lint build up from exhaust ductwork. Refer to Installation Manual for exhaust system requirements.
Yes
Adjust damper so it turns freely.
No
Is the control heater relay malfunctioning?
No
Is the make-up air inadequate?
Yes
Check wiring to ensure thermistor is connected. Replace thermistor if necessary. Remove lint buildup on thermistor.
Yes
Replace control.
No Are the safety covers missing, allowing cool air to enter tumbler?
Yes
Replace covers.
No Is the lint screen clogged with fabric softener?
Yes
Replace lint screen.
No
Are there holes in cabinets due to foreign objects?
Yes
Repair/replace cabinet components. TMB1911S
24
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Troubleshooting
11. Burner Not Burning Properly Burner Not Burning Properly
Is there lint/dirt in burner tube?
Yes
Disassemble burner and blow out the dirt.
No
No
Yes
No
Is the exhaust duct restricted or blocked?
Yes
Replace airflow switch.
No
Is the gas Yes pressure too high or low?
Does the tumbler have incorrect orifices?
Is the airflow switch not functioning properly?
Yes
Check serial plate on back of tumbler for correct gas pressure. Tumbler is equipped for the type of gas specified on serial plate. If orifices are different from that specified on serial plate, obtain and install correct orifices.
Is there inadequate make-up air?
Yes
Refer to Installation Manual for make-up air requirements.
No
Is there lint buildup around gas valve spud?
Yes
Clean off lint.
Disassemble and clean exhaust system.
No
TMB1912S
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
25
Troubleshooting
12. Loading Door Opens During Operation Loading Door Opens During Operation
Is tumbler improperly leveled?
Yes
Refer to Installation Manual for leveling leg adjustment.
Yes
Remove part of load and restart tumbler.
No
Is clothes load too large?
No
Is loading door strike adjusted incorrectly?
Yes
Refer to Adjustments Section for strike adjustment.
TMB1913S
26
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Troubleshooting
13. Cylinder Continues to Spin with Door Open Cylinder Continues To Spin With Door Open
Is relay inoperative?
Yes
Replace relay in control box.
TMB1914S
NOTE: All tumbler panels must be in place and on the machine for proper operation.
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
27
Troubleshooting
14. Coin Does Not Fall into Coin Vault or Coin Drop Sensor Does Not Register that Coin Has Been Entered Coin Does Not Fall Into Coin Vault or Coin Drop Sensor Does Not Register That Coin Has Been Entered
Is proper electrical power supplied to coin drop?
No
Yes
Is machine level?
No
Incorrect electrical connection may prevent coins from registering in coin drop. Refer to wiring diagram.
Machines that are not level may prevent coins from following through required check stages of drop. Refer to Installation Manual for instructions on leveling machine.
Yes
Is coin drop clean?
No
Residue or lint build-up may prevent coins from following through required check stages of drop. Clean coin drop.
Yes
Is sensor operative?
No
Replace coin drop sensor.
TMB1915S
IMPORTANT: Never use oil to correct coin drop problem. Oil residue will prevent coins from rolling properly. IMPORTANT: Do not bend or damage mechanical parts within coin drop. 28
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Section 4 Adjustments WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
15. Loading Door Switch The door switch should be adjusted so the cylinder stops when door is opened 2 inches (51 mm), plus or minus 1/4 inch (6 mm). The switch is normally open and is closed when the door is closed. If adjustment is needed, proceed as follows: Refer to Figure 1.
c. If switch actuator does not depress the switch plunger enough to operate the switch, bend switch actuator OUTWARD and repeat steps “a” and “b.”.
16. Loading Door Strike
a. Close door and start tumbler. Slowly open loading door. Cylinder and heat system should shut off when door is open 2 inches (51 mm), plus or minus 1/4 inch (6 mm). b. Slowly close loading door. When door is 2 inches or less from being fully closed, the switch actuator on the door should contact the switch plunger and depress it enough to close the switch with an audible “click”.
Refer to Figure 1. The door strike must be adjusted so that sufficient tension holds loading door closed against the force of a load tumbling against it. The door is properly adjusted when 8-15 lbs. (3.60-6.75 kg) of pull is required to open door. If adjustment is needed, follow these steps: a. b. c. d.
Open loading door. Loosen jamnut. Turn door strike screw in or out as required. Retighten jamnut.
Loading Door
Switch Actuator
Jamnut Door Strike Screw
T280SE3C
Figure 1
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
29
Section 5 Micro Display Control (MDC) Troubleshooting Models with BC, BL, BX and BY Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
17. Coins Ignored When Entered Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests.
Does the display on the electronic control increment properly?
YES
Exit diagnostic testing and reset control. (Prompting for vend price)
NO
Reconnect and run diagnostic test again.
NO
Reconnect and run diagnostic test again.
NO
Is connector H2 on the control firmly seated in its receptacle?
YES
Is the 3 pin connector between coin drop and control connected correctly?
YES
Are wires exiting coin drop optical sensor cracked or broken?
YES
Replace coin drop or optic switch.
NO
Replace coin drop. If problem still exists then replace the electronic control.
30
TMB1978S
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Micro Display Control (MDC) Troubleshooting
18. Control Has No Display Control has no display (1)
Is there voltage across H1-1 & H1-3 on the control?
Gas, steam and electric heat. Single and three phase power supply.
(6)
YES
Replace electronic control.
NO
Is there voltage at the input of the secondary fuse?
NO
Correct wiring between secondary fuse and transformer.
YES
(7)
Is there power supplied to the unit?
NO
Plug unit in and run it.
YES
Is there voltage at output side of secondary fuse?
NO
Replace secondary fuse.
YES
(2)
Is there voltage at input of primary fuses?
NO
Correct wiring between primary fuse and power supply.
Correct wiring between control and secondary fuse.
YES
(3)
Is there voltage at output side of the primary fuses?
NO
Replace primary fuse(s).
YES
(4)
Is there voltage across terminals 1 & 2 of transformer primary?
NO
Correct wiring between primary fuse and transformer.
YES
(5)
Is there voltage across terminals 1 & 4 of transformer secondary?
NO
Replace transformer.
YES TMB1979S
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
31
L2
4
7
SECONDARY FUSE MDL-3.5A 250V
6
2
BLK
BLK
RED
RED
RED/WHT
120V
1
N.O.
COM
LT. BLU
4
2
3
RED/WHT
RED/BLU
5
N.O. COM
LINT PANEL SWITCH
SECONDARY FUSE 1.25 T 250V
WHT
24V 1.5A
DOOR SWITCH
3
24V 3.5A
1
250V
AGC-2A
FUSE
PRIMARY
2
RED
RED
N
RED/BLK
RED/BLK
RED/BLK
FS-2
H2-1
H2-2
H2-5
3
MDC CONTROL
2
1
5
H5 6 8 7
9
10 11 12
HEAT RELAY
MOTOR RELAY
COIN DROPS 4
RED
WHT/BLU
DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED
VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt
24Vac H1-2
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 2
H6 3 4
5
6
SEE VEND APPLICATION DETAIL
1
24VAC
H4
10 9
7
6
H3 5
4
7
6
5
4
3
3
2
2
100 OHM 1/4 watt 1
Door Sense Ret
TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY
8
WHT
FS-1
H2-4
H2-3
H2-6
1
WHT
H4
10 9
COM
AIR FLOW SWITCH
ORG/BRN
WHT
8
CABINET LIMIT THERMOSTAT
N.O.
N.C.
7
WHT
6
5
WHT
4
3
2
1
WHT
TMB2213S
BLK
THERMISTOR
035 & 055 MODELS
BRN/RED
CHASSIS GROUND
GRN/YEL
BLK
THERMISTOR
025 & 030 MODELS
START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN.
AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma
CONTROL POWER SUPPLY
1
H1-1
CONNECTION
24Vac Ret H1-4
H1-3 24Vac Ret
SERVICE
4N25
L1
H11L1
32 WHT/VLT
TB1
Micro Display Control (MDC) Troubleshooting
Control Has No Display
70380601
Micro Display Control (MDC) Troubleshooting
19. Door Open Indicator Gas, steam and electric heat. Single and three phase (1)
Is there voltage at H2-1 on the Electronic control?
Reference voltage checks to transformer neutral.
YES Replace Control.
NO
(6)
Is there voltage at the input of the secondary fuse?
NO
Correct wiring between secondary fuse and transformer.
YES
(7)
Is there power supplied to the unit?
NO
Plug unit in and run it.
YES
NO
Correct wiring between primary fuses and power supply.
NO
Replace primary fuse(s).
Correct wiring between N.O. and output of secondary fuse.
With door closed is there voltage to COM of door switch?
NO
Check for proper function of door switch replace if necessary.
NO
Correct wiring between N.O. on lint panel and COM on door switch.
NO
Check for proper operation replace if necessary.
YES
(4)
(10)
NO
Correct wiring between primary fuses and transformer.
YES
Is there voltage at N.O. of lint panel switch?
YES
(5)
YES
NO
(9)
YES
Is there voltage across terminals 2 & 3 of transformer secondary?
Is there voltage at N.O. of door switch?
YES
(3)
Is there voltage across terminals 1 & 2 of transformer primary?
Replace secondary fuse.
(8)
YES
Is there voltage at output side of the primary fuses?
NO
YES
(2)
Is there voltage at input of primary fuses?
Is there voltage at output side of secondary fuse?
(11)
NO
Replace transformer.
Is there voltage at COM of lint panel switch with lint panel closed?
YES
Correct wiring between H2-1 of electronic control and COM of lint panel switch. TMB2039S
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
33
7
L2
SECONDARY FUSE MDL-3.5A 250V
6
2
BLK
BLK
RED
RED
RED/WHT
FUSE
9
1
N.O.
COM
LT. BLU
4
2
4
RED/WHT N.O. COM
LINT PANEL SWITCH
11
RED/BLU
10
SECONDARY FUSE 1.25 T 250V
WHT
24V 1.5A
DOOR SWITCH
8
3
120V
250V
AGC-2A
24V 3.5A
1
3
PRIMARY
2
RED
RED
N
RED/BLK
RED/BLK
RED/BLK
5
FS-2
H2-1
H2-2
H2-5
3
2
1
5
H5 6 8 7
9
10 11 12
HEAT RELAY
MOTOR RELAY
COIN DROPS 4
RED
WHT/BLU
DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED
VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt
MDC CONTROL
24Vac H1-2
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 2
H6 3 4
5
6
SEE VEND APPLICATION DETAIL
1
24VAC
H4
10 9
7
6
H3 5
4
7
6
5
4
3
3
2
2
100 OHM 1/4 watt 1
Door Sense Ret
TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY
8
WHT
FS-1
H2-4
H2-3
H2-6
1
WHT
H4
10 9
COM
AIR FLOW SWITCH
ORG/BRN
WHT
CABINET LIMIT THERMOSTAT
N.O.
N.C.
BRN/RED
8
7
WHT
6
5
WHT
4
3
035 & 055 MODELS
CHASSIS GROUND
GRN/YEL
BLK
THERMISTOR
025 & 030 MODELS
START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN.
AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma
CONTROL POWER SUPPLY
1
H1-1
CONNECTION
24Vac Ret H1-4
H1-3 24Vac Ret
L1
4N25
SERVICE
H11L1
34 WHT/VLT
TB1
2
1
TMB2214S
BLK
THERMISTOR WHT
Micro Display Control (MDC) Troubleshooting
Door Open Indicator
70380601
Micro Display Control (MDC) Troubleshooting
20. Motor Will Not Start/Run Note: test conducted with vend (1) price satisfied and start button pressed. NO
Is there voltage across H2-1 and H2-6 on the electronic control ?
Gas, electric and steam heat. Single and three phase power supply.
Refer to Door Open Indicator flowchart.
Replace MDC control.
(6)
Is there voltage across terminals 1 & 4 of the fan motor?
YES (2) Is there voltage across H2-4 and H2-6 on the electronic control?
NO
Replace control.
Does the fan motor run?
NO
Correct wiring between fan motor and motor control relay.
YES
YES (3)
Is there voltage across the coil of the motor control relay?
NO
Correct wiring to coil of motor relay .
3 phase. Also see Note on next page
Replace fan motor.
YES
Is unit equipped with single phase or three phase power supply?
YES
NO
Single phase
Three phase. Also see Note on next page. (12)
Is the unit equipped with single phase or three phase power?
Is there supply voltage between L2 & L3 of motor control relay?
Single phase (4)
NO
Is there voltage at terminal 5 of the motor control relay?
Correct wiring between terminal 5 and power supply.
NO
Is there voltage at terminal 8 of motor control relay?
Replace motor control relay.
Correct wiring between L2, L3 and supply.
YES (13)
Is there voltage across terminals L2 & T2 and L3 & T3?
YES (5)
NO
YES
Replace motor control relay.
NO (7)
YES Is there voltage at terminal 6 of motor control relay?
(10)
Is there supply voltage to L1 and L2 of the motor control relay?
NO
Correct wiring between L1, L2 and power supply.
YES (11)
Is there votlage across L1 & T1 and L2 & T2?
Replace motor control relay.
Correct wiring between terminal 6 of motor control relay and supply.
YES (8)
Is there voltage at terminal 9 of motor control relay? YES
NO
NO
Replace motor control relay.
YES
NO
TMB1982S
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
35
Micro Display Control (MDC) Troubleshooting
20. Motor Will Not Start/Run (continued) (9)
Is there voltage across terminals 1 & 4 of cylinder motor?
NO
Correct wiring between cylinder motor and motor control relay.
YES
Does the cylinder motor run?
NO
Replace cylinder motor.
YES
Motors are operational.
Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks.
TMB1982S
TMB1982S
Please see following 2 pages for wiring diagram information.
36
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
RED/BLK
RED/BLK
RED/BLK
FS-2
3
H2-1
2
1
5
4
H5 6 8
7
COIN DROPS
9
10 11 12
HEAT RELAY
MOTOR RELAY
24Vac H1-2
H2-2
DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED
VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt
24Vac Ret
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1
2
24VAC H6 3 4 5
6
H4
10 9
7 6
H3 5 4
7
6
WHT
5
4
3
3
2
1
2
100 OHM 1/4 watt 1
FS-1
H2-4
H2-3
H4
10 9
COM
AIR FLOW SWITCH
ORG/BRN
WHT
8
7
CABINET LIMIT THERMOSTAT
N.O.
M
3
4
BRN
5
A
3
7
2
M
1
GRN/YEL
TH
4
GND
2
WHT/ BRN
3
ICM
1
VALV
GND 3
GND 3
FAN MOTOR CENTRIFUGAL SWITCH
IGN
ORG/ WHT
VLT/WHT
4
WHT
WHT
BLK
THERMISTOR WHT
STOVE LIMIT THERMOSTAT
BRN/WHT
B
6
WHT
VLT
WHT
035 & 055 MODELS
N.C. ORG
BRN/RED
2
CHASSIS GROUND
GRN/YEL
BLK
THERMISTOR WHT
H2-6 Door Sense Ret
TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY
8
START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN.
AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma
CONTROL POWER SUPPLY
H1-1
SEE VEND APPLICATION DETAIL
H1-4
H2-5
MDC CONTROL
RED
WHT/BLU
4N25
H1-3 24Vac Ret
025 & 030 MODELS
H11L1
1
WHT/VLT
5
1
WHT
BLK
WHT/
8
5
BLK GRY/BLK
70380601 M
3
MAIN 1
THERM PROT.
AUX
5
6
MAIN 2
SECOND COIL
FIRST COIL
GAS VALVE
RUN
FAN MOTOR
5
4
9
6
BLK/RED BLU/BLK
4
1
RUN
MAIN 1
THERM PROT.
8
TB1-L1
9
MAIN 2
AUX
CYLINDER MOTOR
M
BLK/RED
208-240V SERVICE
TB1-L2
120V SERVICE
7
4
TMB2215S
TB1-N
Micro Display Control (MDC) Troubleshooting
Motor Will Not Start/Run (Sheet 1 of 2)
37
LT. BLU
WHT
T3
T2
H5
H3
2
SECONDARY FUSE MDL-3.5A 250V
HC1
BLK
1
250V
AGC-2A
FUSES
PRIMARY
BLK/ WHT
2
BLK/ WHT
1
3
3
4
1
N.O.
COM
6
4
RED/WHT
RED/BLU
N.O.
COM
LINT PANEL SWITCH
SECONDARY FUSE 1.25 T 250V
WHT
24V 1.5A
5
DOOR SWITCH
24V 4.0A
2
SEE TRANSFORMER CONFIGURATION JUMPER
BLK
RED
RED
RED/WHT
RED
RED
HC2
RED/BLK
RED/BLK
RED/BLK
FS-2
H2-1
H2-2
H2-5
3
2
1
5
H5 6 8 7
9
10 11 12
HEAT RELAY
MOTOR RELAY
COIN DROPS 4
RED
WHT/BLU
1
DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED
VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt
MDC CONTROL
24Vac H1-2
L3
24Vac Ret
1
2
24VAC H6 3 4 5
6
H4
8
7 6
H3 5 4
7
6
5
4
3
3
2
2
100 OHM 1/4 watt 1
Door Sense Ret
TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY
10 9
WHT
FS-1
H2-4
H2-3
H2-6
1
WHT
H4
10 9
COM
AIR FLOW SWITCH
ORG/BRN
WHT
8
7
CABINET LIMIT THERMOSTAT
N.O.
VLT
6
M
4
3
14
2
M
3
1
13
ORG/ WHT
WHT
WHT
BLK
WHT/ BRN
3
11
10
HC2
HC1
FAN MOTOR CENTRIFUGAL SWITCH
THERMISTOR WHT
VLT/WHT
STOVE LIMIT THERMOSTAT
BRN/WHT
BRN
5
WHT
2
WHT
035 & 055 MODELS
N.C. ORG
BRN/RED
CHASSIS GROUND
GRN/YEL
BLK
THERMISTOR
025 & 030 MODELS
START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN.
AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma
CONTROL POWER SUPPLY
H1-1
SEE VEND APPLICATION DETAIL
H1-4
H1-3 24Vac Ret
L2
4N25
TB1-L3
H11L1
TB1-L2
WHT/VLT
5
T1
L1
BLK
GRY/BLK
38 1
M
3
BLK/WHT
4
1
13
RUN
MAIN 1
THERM PROT.
AUX MAIN 2
TMB2216S
9
MAIN 2
AUX
5
M
12
6
T3
BLK/RED
CYLINDER MOTOR
MAIN 1
THERM PROT.
M
L3
LT. BLU
FAN MOTOR
RUN
T2
L2
TB1-L3
TB1-L2
TB1-L1
BLU/BLK
TB1-L1
4
Micro Display Control (MDC) Troubleshooting
Motor Will Not Start (Sheet 2 of 2)
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
LT. BLU
WHT
Micro Display Control (MDC) Troubleshooting
21. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1)
(7)
NO
Is there voltage at FS-2 of MDC control?
Correct wiring between FS-2 and COM of lint drawer.
YES
Is there voltage at terminal 3 of fan motor centrifugal switch?
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
YES Replace MDC control.
Replace thermistor.
(8)
(2)
NO
NO
Is there voltage at FS-1 of MDC control?
Is the thermistor operational?
YES
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
NO
(9)
NO
Correct wiring between COM of airflow switch and FS-1 of MDC control.
Is there voltage to the input side of the cabinet limit?
NO
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
YES
YES
(10)
(4)
Is there voltage across COM & N.C. terminal of airflow switch?
Replace fan motor.
YES
(3)
Is there voltage at COM of airflow switch?
YES
YES
Check for proper function of airflow switch and replace if necessary.
YES Is there voltage across cabinet limit?
Replace cabinet limit.
NO
NO (5)
Is there voltage at terminal 7 of motor control relay?
(11)
NO
Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch.
YES
Is there voltage to the input side of the stove limit?
NO
Correct wiring between stove limit 1 and cabinet limit.
YES
(6)
Is there voltage across terminals 7 & 4 of motor control relay?
YES
Replace motor control relay.
NO TMB1985S
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
39
Micro Display Control (MDC) Troubleshooting
21. Unit Will Not Heat – Gas (continued) (12)
Is there voltage across the stove limit 1?
YES
YES Replace the stove limit.
NO
Is there gas flow through the gas valve?
NO
Replace gas valve coils or complete gas valve.
NO
Replace high voltage ignition cable or igniter.
YES
(13)
Is there voltage to input side of stove limit 2?
NO
Correct wiring between stove limit 1 and stove limit 2.
YES
Does the igniter spark?
YES
(14)
Is there voltage across stove limit 2?
YES
YES Replace stove limit 2.
Is there a flame?
Unit operational.
NO NO (15) Is there voltage to terminal 2 of the Ignition Control Module (ICM)?
NO
Correct wiring between terminal 2 of ICM and stove limit 2.
YES Note: Make sure unit is not in a lock out condition.
(16)
Is there voltage at terminal 1 of ICM board?
NO Replace ICM board.
YES
(17)
Is there voltage across the coils of the gas valve?
NO
Correct wiring between gas valve and ICM board.
YES TMB1985S
Please see following page for wiring diagram information.
40
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Micro Display Control (MDC) Troubleshooting
17
9
15
10
11
2
12
13
3
1
4
5
14
6
8
7
16
TMB2217S
Unit Will Not Heat – Gas
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
41
Micro Display Control (MDC) Troubleshooting
22. Unit Will Not Heat – Steam Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral.
(1)
Is there voltage on FS-2 of MDC control?
(7)
NO
Correct wiring between FS-2 and COM of lint panel.
YES Replace MDC control.
Replace thermistor.
(2)
(9)
NO
Correct wiring between COM of airflow switch and FS-1 of MDC control.
NO
Is there voltage to the input side of the cabinet limit?
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
YES (10)
(4)
YES
Check for proper function of airflow switch and replace if necessary.
NO
Is there voltage across cabinet limit?
YES
Replace cabinet limit.
NO
(5)
Is there voltage on terminal 7 of motor control relay?
Replace fan motor.
NO
YES
Is there voltage across COM & N.C. terminal of airflow switch?
YES
YES
(3)
Is there voltage on COM of airflow switch?
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
YES
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
NO
Is the thermistor operational?
YES
NO
(8)
NO
Is there voltage on FS-1 of MDC control?
Is there voltage on terminal 3 of fan motor centrifugal switch?
(11)
NO
Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch.
YES
Is there voltage to the input side of the stove limit?
NO
Correct wiring between stove limit and cabinet limit.
YES
(6)
Is there voltage across terminals 7 & 4 of motor control relay?
YES
Replace motor control relay.
NO
42
TMB2040S
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Micro Display Control (MDC) Troubleshooting
22. Unit Will Not Heat – Steam (continued) (12)
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
Is there voltage across the stove limit?
YES
Replace the stove limit.
NO (13)
Is there voltage across the coil of the steam valve?
NO
Replace fan motor.
Correct wiring between steam valve and stove limit.
YES
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
Does the steam valve open allowing steam to flow?
No
Replace or rebuild steam valve.
Unit operational. Replace cabinet limit.
Correct wiring between stove limit and cabinet limit.
TMB2040S
Please see following page for wiring diagram information.
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
43
RED/BLK
RED/BLK
RED/BLK
FS-2
H2-1
H2-2
3
2
1
5
4
H5 6 8
7
COIN DROPS
9
10 11 12
HEAT RELAY
MOTOR RELAY
DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED
VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt
24Vac H1-2
H2-5
MDC CONTROL
RED
WHT/BLU
24Vac Ret
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1
2
24VAC H6 3 4 5
6
H4
8
7
6
H3 5 4
7
6
5
4
3
2
3
2
2
100 OHM 1/4 watt 1
Door Sense Ret
TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY
10 9
START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN.
AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma
CONTROL POWER SUPPLY
H1-1
SEE VEND APPLICATION DETAIL
H1-4
WHT
4N25
H1-3 24Vac Ret
FS-1
H2-4
H2-3
H2-6
1
WHT
H4
10 9
COM
8
N.O.
9
CABINET LIMIT THERMOSTAT
10
7
VLT
M
5
4
BRN
5
A
12
BRN/WHT
B
6
WHT
3
7
11
M
6
1
4
7
WHT/ BRN
3
8
STEAM VALVE
13
FAN MOTOR CENTRIFUGAL SWITCH
WHT/BLK
ORG/ WHT
WHT
WHT
BLK
THERMISTOR WHT
VLT/WHT
2
STOVE LIMIT THERMOSTAT
WHT
035 & 055 MODELS
N.C. ORG
BRN/RED
4
AIR FLOW SWITCH
ORG/BRN
3
WHT
CHASSIS GROUND
GRN/YEL
BLK
THERMISTOR
025 & 030 MODELS
H11L1
44 WHT/VLT
1
WHT TMB2218S
5
Micro Display Control (MDC) Troubleshooting
Unit Will Not Heat – Steam
70380601
Micro Display Control (MDC) Troubleshooting
23. Unit Will Not Heat – Electric Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral.
(1)
Is there voltage at FS-2 of MDC control?
(7)
NO
Correct wiring between FS-2 and COM of lint panel switch.
YES
Is there voltage at terminal 3 of fan motor centrifugal switch?
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 13 of motor control relay.
YES Replace MDC control.
Replace thermistor. (2)
(8)
NO
Is there voltage on FS-1 of MDC control?
Is the thermistor operational?
YES
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
NO
NO (9)
NO
Correct wiring between COM of airflow switch and FS-1 of MDC control.
YES
Is there voltage to the input side of the cabinet limit?
NO
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
YES (10)
(4)
Is there voltage across COM & N.C. terminal of airflow switch?
Replace fan motor.
YES
(3)
Is there voltage at COM of airflow switch?
YES
YES
Check for proper function of airflow switch and replace if necessary.
NO
Is there voltage across cabinet limit?
YES
Replace cabinet limit.
NO
(5)
Is there voltage at terminal 14 of motor control relay?
(11)
NO
Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch.
YES
Is there voltage to the input side of the stove limit?
NO
Correct wiring between stove limit and cabinet limit.
YES
(6)
Is there voltage across terminals 13 & 14 of motor control relay?
YES
Replace motor control relay.
TMB2041S NO
70380601
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45
Micro Display Control (MDC) Troubleshooting
23. Unit Will Not Heat – Electric (continued) Note: Please make the oppropriate adjustments if your unit is single phase.
(12)
Is there voltage across the stove limit?
YES
Replace the stove limit.
NO (13)
Is there voltage across the coil(s) of the heater contactor(s)?
NO
Correct wiring between heater contactor and stove limit.
NO
Correct wiring between HC1 and line voltage.
NO
Correct wiring between HC2 and line voltage.
NO
Check for proper operation of contactors, replace them if necessary.
YES (14)
Is there voltage to the L1, L2 and L3 terminals of HC1?
YES (15)
Is there voltage to the L1, L2 and L3 terminals of HC2?
YES (16)(17)(18)
Is there voltage across T1 & T2, T2 & T3 and T3 & T1?
Unit is operational
YES
Do all elements produce heat?
NO
Check elements for shorts or opens. Check wires between contactors and elements.
YES
TMB2041S
Please see following page for wiring diagram information.
46
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
16
L3
CONNECTION
H6
H1
T1
HC2
L1
T2
HC1
L2
H4
H2
T2
HC2
L2
17
15
18
HEATING ELEMENTS
T1
T3
L1
HC1
HC2
L3
H5
H3
2
SECONDARY FUSE MDL-3.5A 250V
T3
HC1
L3
TB1-L3
TB1-L2
250V 2
1
3
3
4
1
N.O. COM
6
4
RED/WHT
RED/BLU
N.O. COM
LINT PANEL SWITCH
SECONDARY FUSE 1.25 T 250V
WHT
24V 1.5A
5
DOOR SWITCH
24V 4.0A
2
SEE TRANSFORMER CONFIGURATION JUMPER
1
AGC-2A
FUSES
PRIMARY
BLK/ WHT BLK/ WHT
L2
BLK BLK RED
RED
RED/WHT
RED
RED
SERVICE
RED/BLK
RED/BLK
RED/BLK
FS-2
H2-1
H2-2
H2-5
3
2
1
5
H5 6 8 7
9
10 11 12
HEAT RELAY
MOTOR RELAY
COIN DROPS 4
RED
WHT/BLU
1
DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED
VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac - 13.6K ohm 10 watt
MDC CONTROL
24Vac H1-2
TB1-L1
24Vac Ret
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1
2
24VAC H6 3 4
5
6
H4
8
7
6
H3 5
4
7
6
5
4
3
2
3
2
2
100 OHM 1/4 watt 1
Door Sense Ret
TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY
10 9
WHT
FS-1
H2-4
H2-3
H2-6
1
WHT
H4
10 9
COM
8
N.O.
9
CABINET LIMIT THERMOSTAT
10
7
VLT
4
BRN
M
5
5
12
BRN/WHT
6
WHT
3
14
2
11
M
6
1
13
7
ORG/ WHT
WHT
WHT
BLK
WHT/ BRN
3
8
HC2
HC1
13
5
WHT
TMB2219S
FAN MOTOR CENTRIFUGAL SWITCH
THERMISTOR WHT
VLT/WHT
STOVE LIMIT THERMOSTAT
WHT
035 & 055 MODELS
N.C. ORG
BRN/RED
4
AIR FLOW SWITCH
ORG/BRN
3
WHT
CHASSIS GROUND
GRN/YEL
BLK
THERMISTOR
025 & 030 MODELS
START PULSE INPUT H3-1 & H3-2 Iin= 3-30ma TIME 20msec MIN.
AVAILABLE OUTPUT H3-3 & H3-4 OPTO OFF WHEN MACHINE RUNNING Vmax=28Vdc Imax=5ma
CONTROL POWER SUPPLY
H1-1
SEE VEND APPLICATION DETAIL
H1-4
H1-3 24Vac Ret
L1
4N25
14
H11L1
70380601 WHT/VLT
TB3
Micro Display Control (MDC) Troubleshooting
Unit Will Not Heat – Electric
47
Micro Display Control (MDC) Troubleshooting
WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the dryer(s) before servicing. • Close gas shut-off valve to gas dryer(s) before servicing. • Never start the dryer(s) with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded. W001R1
24. Error Codes OP - Indicates physical “open” in the thermistor circuit. Possible causes are: 1) thermistor, 2) wiring between control and thermistor, 3) control. SH - Indicates a “short” in the thermistor circuit. Possible causes are: 1) shorted thermistor, 2) a short in the wiring between control and thermistor, 3) control.
Display
EC:19 - Indicates no card reader communication. The control and the reader cannot communicate. Check reader, control and harness. NOTE: For all other card reader errors, consult the card reader manual provided by the manufacturer.
Definition
Corrective Action
OP
Indicates an open circuit in the thermistor. • Check thermistor. Replace if inoperative. • Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative.
SH
Indicates a short circuit in the thermistor.
• •
Indicates no communication between control and card reader.
• •
EC:19 *Card Reader models only
48
Card Reader Machines: (In addition to the above errors)
Check thermistor. Replace if inoperative. Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. Check card reader. Replace if inoperative. Check wire harness connecting card reader and control. Replace if inoperative. • Check control. Replace if inoperative.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
TMB2241S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Circuit Schematic 70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
49
TMB2221S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Circuit Connection 50
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
TMB2027S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Box Schematic 70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
51
TMB2026S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Box Connection 52
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
TMB2222S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Circuit Schematic 70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
53
TMB2223S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Circuit Schematic 54
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
TMB2027S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Box Schematic 70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
55
TMB2026S
Micro Display Control (MDC) Troubleshooting
Gas and Steam Models Control Box Connection 56
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
TMB2220S
Micro Display Control (MDC) Troubleshooting
Electric Models Control Circuit Schematic 70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
57
TMB2224S
Micro Display Control (MDC) Troubleshooting
Electric Models Control Circuit Connection 58
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
TMB2030S
Micro Display Control (MDC) Troubleshooting
Electric Models Control Box Connection 70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
59
TMB2031S
Micro Display Control (MDC) Troubleshooting
Electric Models Control Box Schematic 60
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Section 6 NetMaster Troubleshooting Models with NC, NR, NX, NY, ZC, ZR, ZX and ZY Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
25. No Infra-red (IR) Communication Gas and electric heat. Single and three phase power supply.
Attempt to communicate with the electronic control from the handheld communication device
Check the following:
NO
Is there a response of any kind from the electronic control?
Aim handheld communication device closer and try again.
YES
Does the control respond?
YES
NO
- low battery in handheld communication device. - low battery in the Symbol SPT 1800 infra-red box. - poor connection between IR cup and Micro-Wand. - poor connection between IR box and Symbol SPT 1800. - is the IR window covered or blurred on the control. NO
-C-
Does the electronic control display E:OF or -C-?
Communication sequence checks out.
Replace the electronic control.
"E:OF"
Check the following: - IR communication disabled by manual programming. - Is the IR window on the control covered or blocked. - if needed, change control board. TMB1991S
70380601
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61
NetMaster Troubleshooting
26. Coins Ignored When Entered Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests.
Does the display on the electronic control increment properly?
YES
Exit diagnostic testing and reset control. (Prompting for vend price)
NO
Reconnect and run diagnostic test again.
NO
Reconnect and run diagnostic test again.
NO
Is connector H5 on the control firmly seated in its receptacle?
YES
Is the 3 pin connector between coin drop and control connected correctly?
YES
Are wires exiting coin drop optical sensor cracked or broken?
YES
Replace coin drop or optic switch.
NO
Replace coin drop. If problem still exists then replace the electronic control.
62
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
TMB1992S
70380601
NetMaster Troubleshooting
27. Control Has No Display (1)
Gas, steam and electric heat. Single and three phase power supply.
Is there voltage across H1-1 & H1-3 on the control?
YES
Replace electronic control.
NO
(6)
Is there voltage at the input of the secondary fuse?
NO
Correct wiring between secondary fuse and transformer.
YES
(7)
Is there power supplied to the unit?
NO
Plug unit in and run it.
YES
Is there voltage at output side of secondary fuse?
NO
Replace secondary fuse.
YES
(2)
Is there voltage at input of primary fuses?
NO
Correct wiring between primary fuse and power supply.
Correct wiring between control and secondary fuse.
YES
(3)
Is there voltage at output side of the primary fuses?
NO
Replace primary fuse(s).
YES
(4)
Is there voltage across terminals 1 & 2 of transformer primary?
NO
Correct wiring between primary fuse and transformer.
YES
(5)
Is there voltage across terminals 1 & 4 of transformer secondary?
NO
Replace transformer.
YES TMB1993S
70380601
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63
NetMaster Troubleshooting
5 4
6
7
2
3
1
TMB2225S
Control Has No Display
64
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
NetMaster Troubleshooting
28. Door Open Indicator Gas, steam and electric heat. Single and three phase supply. (1)
Is there voltage at H2-1 on the electronic control?
Reference voltage checks to transformer neutral.
YES Replace control.
NO
(6)
Is there voltage at the input of the secondary fuse?
NO
Correct wiring between secondary fuse and transformer.
YES
(7)
Is there power supplied to the unit?
NO
Plug unit in and run it.
YES
NO
Correct wiring between primary fuses and power supply.
NO
Replace primary fuse(s).
Correct wiring between N.O. and output of secondary fuse.
With door closed is there voltage to COM of door switch?
NO
Check for proper function of door switch replace if necessary.
NO
Correct wiring between N.O. on lint panel and COM on door switch.
NO
Check for proper operation replace if necessary.
YES
(10)
(4)
NO
Correct wiring between primary fuses and transformer.
YES
Is there voltage at N.O. of lint panel switch?
YES
(5)
YES
NO
(9)
YES
Is there voltage across terminals 2 & 3 of transformer secondary?
Is there voltage at N.O. of door switch?
YES
(3)
Is there voltage across terminals 1 & 2 of transformer primary?
Replace secondary fuse.
(8)
YES
Is there voltage at output side of the primary fuses?
NO
YES
(2)
Is there voltage at input of primary fuses?
Is there voltage at output side of secondary fuse?
(11)
NO
Replace transformer.
Is there voltage at COM of lint panel switch with lint panel closed?
YES
Correct wiring between H2-1 of electronic control and COM of lint panel switch. TMB2042S
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
65
NetMaster Troubleshooting
5
7
6
8
2
9
10
3
4
11
1
TMB2226S
Door Open Indicator
66
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
NetMaster Troubleshooting
29. Motor Will Not Start/Run (1)
Note: test conducted with vend price satisfied and start button pressed.
Is there voltage across H2-1 and H2-6 on the electronic control ?
NO
Gas, electric and steam heat. Single and three phase supply.
Refer to Door Open Indicator flowchart.
(2)
NO
Replace control.
Does the fan motor run?
NO
Correct wiring to coil of motor relay .
3 phase. Also see note on next page
NO Replace fan motor.
Single phase
Three phase. Also see Note on next page. (12)
Is the unit equipped with single phase or three phase power?
Is there supply voltage between L2 & L3 of motor control relay?
Single phase (4)
NO
Correct wiring between terminal 5 and power supply.
NO
Replace motor control relay.
NO
Correct wiring between L2, L3 and supply.
YES (13)
Is there voltage across terminals L2 & T2 and L3 & T3?
YES (5)
Is there voltage at terminal 8 of motor control relay?
Correct wiring between fan motor and motor control relay.
YES
Is unit equipped with single phase or three phase power supply?
YES
Is there voltage at terminal 5 of the motor control relay?
NO
YES
YES (3)
Is there voltage across the coil of the motor control relay?
(6)
Is there voltage across terminals 1 & 4 of the fan motor?
YES
Is there voltage across H2-4 and H2-6 on the electronic control?
Replace electronic control.
YES
Replace motor control relay.
NO (7)
YES Is there voltage at terminal 6 of motor control relay?
(10)
Is there supply voltage to L1 and L2 of the motor control relay?
NO
Correct wiring between L1, L2 and power supply.
YES (11)
Is there votlage across L1 & T1 and L2 & T2?
Replace motor control relay.
Correct wiring between terminal 6 of motor control relay and supply.
YES (8)
Is there voltage at terminal 9 of motor control relay? YES
NO
NO
Replace motor control relay.
YES
NO
Note: tests conducted with vend price satisfied and start button pressed.
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
TMB2043S
67
NetMaster Troubleshooting
29. Motor Will Not Start/Run (continued) (9)
Is there voltage across terminals 1 & 4 of cylinder motor?
NO
Correct wiring between cylinder motor and motor control relay.
YES
Does the cylinder motor run?
NO
Replace cylinder motor.
YES
Motors are operational.
Note: For high voltage three phase supply (380 volts or higher), the cylinder and fan motors are supplied by L1, L2, L3 through the motor relay terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks.
TMB2043S TMB2043S
Please see following 2 pages for wiring diagram information.
68
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
1
2
3
4
5
6
8
7
9
TMB2227S
Motor Will Not Start/Run 1 Phase Models
70380601
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
69
NetMaster Troubleshooting
1
2
3
11
10
6
13
12
9
TMB2228S
Motor Will Not Start 3 Phase Models
70
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
NetMaster Troubleshooting
30. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1)
(7)
NO
Is there voltage at FS-2 of the control?
Correct wiring between FS-2 and COM of lint panel.
YES
Is there voltage at terminal 3 of fan motor centrifugal switch?
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
YES Replace the control.
Replace thermistor. (2)
(8)
NO
Is there voltage at FS-1 of the control?
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
NO
Is the thermistor operational?
YES
YES Replace fan motor.
YES NO
(3)
(9)
Is there voltage at COM of airflow switch?
NO
Correct wiring between COM of airflow switch and FS-1 of the control.
Is there voltage to the input side of the cabinet limit?
NO
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
YES
YES
(10)
(4)
Is there voltage across COM & N.O. terminal of airflow switch?
YES
Check for proper function of airflow switch and replace if necessary.
NO
Is there voltage across cabinet limit?
YES
Replace cabinet limit.
NO
(5)
(11)
NO
Is there voltage at terminal 7 of motor control relay?
Correct wiring between terminal 7 on motor control relay and N.O. terminal on airflow switch.
YES
Is there voltage to the input side of stove limit 1?
NO
Correct wiring between stove limit 1 and cabinet limit.
YES
(6)
Is there voltage across terminals 7 & 4 of motor control relay?
YES
Replace motor control relay.
TMB2231S
NO
70380601
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71
NetMaster Troubleshooting
30. Unit Will Not Heat – Gas (continued)
(12)
Is there voltage across stove limit 1?
YES
Replace stove limit 1.
NO
Is there gas flow through the gas valve?
NO
Replace gas valve coils or complete gas valve.
NO
Replace high voltage ignition cable or igniter.
YES
(13)
Is there voltage to the input side of the stove limit 2?
NO
Correct wiring to input side of stove limit 2 and stove limit 1.
YES
Does the igniter spark?
YES
(14)
Is there voltage across stove limit 2?
NO
Replace stove limit 2.
YES
YES Is there a flame?
Unit operational.
NO
(15)
Is there voltage to terminal 2 of the Ignition Control Module (ICM)?
NO
Correct wiring between terminal 2 of ICM and stove limit.
YES Note: Make sure unit is not in a lock out condition.
(16)
Is there voltage at terminal 1 of ICM board?
NO Replace ICM board.
YES
(17)
Is there voltage across the coils of the gas valve?
NO
Correct wiring between gas valve and ICM board.
YES
TMB2231S TMB2231S
Please see following page for wiring diagram information.
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or
1
11
or
2
3
12
4
10
5
14
6
9
15
7
8
16
17
TMB2229S
Unit Will Not Heat – Gas
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NetMaster Troubleshooting
31. Unit Will Not Heat – Steam Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral.
(1)
(7)
Is there voltage on FS-2 of electronic control?
NO
Correct wiring between FS-2 and COM of lint panel.
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
YES
YES Replace electronic control.
Replace thermistor.
(2)
NO
Is there voltage on FS-1 of electronic control?
Is there voltage on terminal 3 of fan motor centrifugal switch?
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
NO
Is the thermistor operational?
YES
(8)
YES
YES
Replace fan motor.
NO (9)
(3)
Is there voltage on COM of airflow switch?
NO
Correct wiring between COM of airflow switch and FS-1 of electronic control.
Is there voltage to the input side of the cabinet limit?
NO
Correct wiring between cabinet limit and terminal "5" of fan motor centrifugal switch.
YES (10)
YES (4)
Is there voltage across cabinet limit? Is there voltage across COM & N.C. terminal of airflow switch?
YES
Check for proper function of airflow switch and replace if necessary.
YES
Replace cabinet limit.
NO (11)
NO
Is there voltage across the coil of the steam valve?
(5)
Is there voltage on terminal 7 of motor control relay?
NO
Correct wiring between terminal 7 on motor control relay and N.C. terminal on airflow switch.
NO
Correct wiring between steam valve and stove limit.
YES
YES Does the steam valve open allowing steam to flow?
(6)
Is there voltage across terminals 7 & 4 of motor control relay?
YES
No
Replace steam valve.
Replace motor control relay.
Unit operational. NO
74
TMB2044S
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9
2
10
3
4
5
6
7
8
11
TMB2230S
Unit Will Not Heat – Steam
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Section 7 Hybrid Timer Control Troubleshooting Models with QT, SD and SX Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
32. Coins Ignored When Entered Gas and electric heat. Single and three phase power supply. Start coin drop diagnostic tests.
Does the light on the control increment properly?
YES
Exit diagnostic testing and reset control. (Prompting for vend price)
NO
Reconnect and run diagnostic test again.
NO
Reconnect and run diagnostic test again.
NO
Is connector H2 on the control firmly seated in its receptacle?
YES
Is the 3 pin connector between coin drop and control connected correctly?
YES
Are wires exiting coin drop optical sensor cracked or broken?
YES
Replace coin drop or optic switch.
NO
Replace coin drop. If problem still exists then replace the electronic control.
76
TMB2051S
TMB2051S
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Hybrid Timer Control Troubleshooting
33. Control Has No Display – OPL Models Gas, steam and electric heat. Single and three phase supply.
Is there voltage supplied to the unit?
NO
Connect supply voltage and run unit.
(6)
Check H6-1 (+) and H6-2 (-) for +5 VDC.
NO
Replace hybrid control assembly.
YES
YES Note : Reference voltage to supply neutral. (1)
Is there voltage to the input side of the primary fuse(s)?
NO
Correct wiring between primary fuse and supply.
Replace display assembly.
YES
(2)
Is there voltage to the output side of the primary fuse(s)?
NO
Replace primary fuse.
YES
(3)
Is there voltage across the primary side of the transformer?
NO
Correct wiring between transformer and primary fuse.
YES
(4)
Is there voltage across 2 & 3 of transformer secondary?
NO
Replace transformer
YES
(5)
Is there volt age across terminals H1-3 & H1-1 on hybrid timer?
NO
Correct wiring between hybrid timer and transformer secondary.
YES
TMB2000S
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78
1
2
2
4
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4
3
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4
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TMB2106S
Control Has No Display – OPL Models (Sheet 1 of 2)
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6
TMB2222S
Control Has No Display – OPL Models (Sheet 2 of 2)
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Hybrid Timer Control Troubleshooting
34. Display Flashes “dr” With Door Closed – OPL Models (1)
Is there voltage between H1-1 & H1-3 on the control?
Gas, steam and electric heat. Single and three phase power supply.
(6)
YES
Replace hybrid control.
NO
Is there voltage at the input of the secondary fuse?
NO
Correct wiring between secondary fuse and transformer.
YES (7)
Is there power supplied to the unit?
NO
Plug unit in and run it.
Is there voltage at output side of secondary fuse?
NO
Replace secondary fuse.
YES
YES
(8) (2)
Is there voltage at input of primary fuses?
NO
Correct wiring between primary fuse and power supply.
Is there voltage at COM of door switch?
NO
Connect wiring between COM and output of secondary fuse.
YES YES
(9)
(3)
Is there voltage at output side of the primary fuses?
NO
Replace primary fuse(s).
With door closed, is there voltage to NO of door switch?
NO
Replace door switch.
YES (10)
YES (4)
Is there voltage across the transformer primary?
NO
Correct wiring between primary fuse and transformer.
Is there voltage at COM of the lint panel switch?
NO
Connect wiring between door switch and COM of lint panel switch.
YES (11) YES With lint panel closed, is there power at NO connection?
(5)
Is there voltage across terminals 2 & 3 of transformer secondary?
YES
80
NO
NO
Replace lint panel switch.
Replace transformer. YES
Correct wiring between lint panel switch and hybrid control.
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TMB2052S
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6
7
8
9
1
10
TMB2222S
Display Flashes “dr” With Door Closed – OPL Models (Sheet 1 of 2)
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3
3
5
2
5
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4
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3
5
2
4
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TMB2108S
Display Flashes “dr” With Door Closed – OPL Models (Sheet 2 of 2)
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Hybrid Timer Control Troubleshooting
35. Vend Satisfied, No In Use LED – Coin Models Vend Satisfied, No In Use LED – Coin Models
(5)
(1) Is there voltage at the input side of the primary fuse?
No
Correct wiring between the primary fuse and the terminal block.
Is there voltage at the input side of the secondary fuse?
No
Correct wiring between the transformer and the secondary fuse.
Yes (6)
Yes (2) Is there voltage at the output side of the primary fuse?
No
Replace the primary fuse.
Replace secondary fuse.
No
Yes (7)
Yes (3) Is there voltage at the input side of the transformer?
Is there voltage at the output side of the secondary fuse?
No
Correct wiring between the primary fuse and the transformer.
Is there power to the conrol of H1-1 and H1-3?
No
Correct wiring between fuse and control.
Yes (8)
Yes (4) Is there voltage at the output side of the transformer?
No
Replace transformer.
Is there voltage at COM of the door switch?
No
Correct wiring between the secondary fuse and COM of the door switch.
Yes Yes
continued on next page TMB2022S-a
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Hybrid Timer Control Troubleshooting
35. Vend Satisfied, No In Use LED – Coin Models (continued) continued from previous page
(13)
(9) Is there voltage at NO of the door switch?
No
Replace the door switch.
Is the H6 connection plugged in securely on the control?
No
Re-seat the H6 connection to the control.
Yes Yes (10) Is there voltage at COM of the lint drawer switch?
No
Correct wiring between the door switch and lint drawer switch.
Yes (11) Is there voltage at NO of the lint drawer switch?
No
Re-seat the optic-coupler harness to the control.
Yes
No
Replace the lint drawer switch.
Yes (12) Is there power at H3-1 and H3-3 on the control?
Is the optic-coupler harness connected securely into the control harness?
Replace the opto-coupler on the coin drop.
No
Replace the control.
Yes
No
Correct wiring between the lint drawer switch and H3 on the control.
Unit is operational.
Yes TMB2022S-b
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2
2
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1
4
3
3
2
4
1
2
4
1
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3
TMB2106S
Vend Satisfied, No In Use LED – Coin Models (Sheet 1 of 2)
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Hybrid Timer Control Troubleshooting
10
6
5
7
8
9
11
12
TMB2232S
Vend Satisfied, No In Use LED – Coin Models (Sheet 2 of 2)
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36. In Use LED Lit, No Motor Run – Coin Models In Use LED Lit, No Motor Run – Coin Models
(5)
(1) Is there continuity through the start switch circuit?
No
Correct or replace the start switch or start switch wiring.
Is there voltage at the input side of the motor relay?
No
Correct wiring between the motor relay and terminal block.
Yes (6)
Yes (2) Is there voltage at H3-6 on the control?
No
Replace the control.
Is there voltage at the output side of the motor relay?
No
Replace the motor relay.
Yes (7)
Yes (3) Is there voltage at A1 on the motor relay?
No
Correct wiring between the control and the motor relay A1.
Is there voltage across the lines of the motor?
No
Correct wiring between the motor and motor relay.
Yes Yes
Replace the motor.
(4) Is there voltage across A1 and A2 on the motor relay?
No
Correct wiring between the control and the motor relay A2.
Yes
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Hybrid Timer Control Troubleshooting
1
2
3
4
TMB2232S
In Use LED Lit, No Motor Run – Coin Models (Sheet 1 of 2)
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6
5 5
6
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7
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TMB2106S
In Use LED Lit, No Motor Run – Coin Models (Sheet 2 of 2)
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Hybrid Timer Control Troubleshooting
37. Motor Will Not Start/Run – Coin Models Note: test conducted with vend (1) price satisfied and start button pressed. Is there voltage across H3-1 and H3-6 on the electronic control ?
NO
Gas, electric and steam heat. Single and three phase power supply.
Refer to Vend Satisfied, No In Use LED - Coin Models flowchart.
Is there voltage across the lines of the fan motor?
YES (2) Is there voltage across H3-4 and H3-6 on the electronic control?
NO
Replace control.
Is there voltage at the input side of motor control relay?
NO
Correct wiring to coil of motor relay .
Correct wiring between fan motor and motor control relay.
NO
Correct wiring between terminal 6 of motor control relay and supply.
YES (8)
Is there voltage at the output side of motor control relay?
YES
NOTE: Please use the appropriate wiring diagram from the following pages.
NO
Is there voltage across the lines of cylinder motor?
NO
Correct wiring between control relay and power supply.
Does the cylinder motor run? NO
NO
Correct wiring between cylinder motor and motor control relay.
YES
YES (5)
Is there voltage at the output side of motor control relay?
Replace motor control relay.
YES (9)
(4)
Is there voltage at the input side of the motor control relay?
NO
YES (7)
YES (3)
Is there voltage across the coil of the motor control relay?
(6)
NO
Replace cylinder motor.
Replace motor control relay. YES
YES Motors are operational. TMB2047S
Please see following 2 pages for wiring diagram information.
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2
3
TMB2232S
Motor Will Not Start/Run – Coin Models (Sheet 1 of 2)
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Hybrid Timer Control Troubleshooting
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6
5 5
6
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6
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4
5
4
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9
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7
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TMB2106S
Motor Will Not Start/Run – Coin Models (Sheet 2 of 2)
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38. Motor Will Not Start/Run – OPL Models Note: test conducted with vend (1) price satisfied and start button pressed. NO
Is there voltage across H4-7 and H4-4 on the electronic control ?
Gas, electric and steam heat. Single and three phase power supply.
Refer to Control Has No Display - OPL Models flowchart.
Is there voltage across the lines of the fan motor?
YES (2) Is there voltage across H4-3 and H4-4 on the electronic control?
NO
Replace control.
Is there voltage at the input side of motor control relay?
Is there voltage across the coil of the motor control relay?
NO
Correct wiring to coil of motor relay .
NOTE: Please use the appropriate wiring diagram from the following pages.
NO
Correct wiring between terminal 6 of motor control relay and supply.
NO
Replace motor control relay.
YES (9)
Is there voltage across the lines of cylinder motor?
(4)
NO
Correct wiring between control relay and power supply.
NO
Replace motor control relay.
NO
Correct wiring between cylinder motor and motor control relay.
YES
Does the cylinder motor run?
YES (5)
YES
Correct wiring between fan motor and motor control relay.
YES (8)
Is there voltage at the output side of motor control relay?
YES
Is there voltage at the output side of motor control relay?
NO
YES (7)
YES (3)
Is there voltage at the input side of the motor control relay?
(6)
NO
Replace cylinder motor.
YES
Motors are operational. TMB2046S
Please see following 2 pages for wiring diagram information.
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Hybrid Timer Control Troubleshooting
1
2
3
TMB2233S
Motor Will Not Start/Run – OPL Models (Sheet 1 of 2)
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7
6
5 5
6
6
6
5
4
5
4
9
9
8
8
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7
6
6
6
5
5
7
7
7
7
5
7
7
7
6
5
7
7
7
7
TMB2106S
Motor Will Not Start/Run – OPL Models (Sheet 2 of 2)
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Hybrid Timer Control Troubleshooting
39. Unit Will Not Heat – Gas – Coin Models Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (1)
(7)
Is there voltage at FS-2 of hybrid control?
NO
Correct wiring between FS-2 and NO of lint panel.
YES
Is there voltage at terminal 3 of fan motor centrifugal switch?
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
YES Replace hybrid control.
Replace thermistor. (2)
(8)
NO
Is there voltage at FS-1 of hybrid control?
NO
Is the thermistor operational?
YES
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
NO
(9)
NO
Correct wiring between COM of airflow switch and FS-1 of hybrid control.
Is there voltage to the input side of the cabinet limit?
NO
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
YES
YES
(10)
(4)
Is there voltage across COM & NO terminal of airflow switch?
Replace fan motor.
YES
(3)
Is there voltage at COM of airflow switch?
YES
YES
Check for proper function of airflow switch and replace if necessary.
NO
YES Is there voltage across cabinet limit?
Replace cabinet limit.
NO
(5)
Is there voltage at terminal 13 of motor control relay?
(11)
NO
Correct wiring between terminal 7 on motor control relay and NO terminal on airflow switch.
YES
Is there voltage to the input side of the stove limit 1?
NO
Correct wiring between stove limit 1 and cabinet limit.
YES
(6)
Is there voltage across terminals 13 & 14 of motor control relay?
YES
Replace motor control relay.
NO
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39. Unit Will Not Heat – Gas – Coin Models (continued)
(12)
Is there voltage across the stove limit 1?
YES
YES Replace the stove limit.
NO
Is there gas flow through the gas valve?
NO
Replace gas valve coils or complete gas valve.
NO
Replace high voltage ignition cable or igniter.
YES
(13)
Is there voltage to input side of stove limit 2?
NO
Correct wiring between stove limit 1 and stove limit 2.
YES
Does the igniter spark?
YES
(14)
Is there voltage across stove limit 2?
YES
YES Replace stove limit 2.
Is there a flame?
Unit operational.
NO NO (15) Is there voltage to terminal 2 of the Ignition Control Module (ICM)?
NO
Correct wiring between terminal 2 of ICM and stove limit 2.
YES Note: Make sure unit is not in a lock out condition.
(16)
Is there voltage at terminal 1 of ICM board?
NO Replace ICM board.
YES
(17)
Is there voltage across the coils of the gas valve?
NO
Correct wiring between gas valve and ICM board.
YES TMB2048S
Please see following page for wiring diagram information.
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11
9
1
10
2
12
3
4
14
5
8
6
7
15
16
17
TMB2232S
Unit Will Not Heat – Gas – Coin Models
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40. Unit Will Not Heat – Gas – OPL Models Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral. (7)
(1) Is there voltage at H4-1 of hybrid control?
NO
Is the thermistor operational?
NO
Replace thermistor
YES Is there voltage across cabinet limit?
Replace cabinet limit.
YES
YES
NO Replace hybrid control.
(2) Is there voltage at terminal 13 of motor control relay?
(8) NO
Correct wiring between terminal 13 on motor control and H4-1 on hybrid control.
YES
Is there voltage to the input side of the stove limit 1?
NO
Correct wiring between stove limit 1 and cabinet limit.
YES
(3) Is there voltage across terminals 13 & 14 of motor control relay?
(9) YES
Replace motor control relay.
NO
Is there voltage across the stove limit 1?
YES
Replace the stove limit.
NO
(10)
(4) Is there voltage at terminal 3 of fan motor centrifugal switch?
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 4 of motor control relay.
YES
NO
Correct wiring between stove limit 1 and stove limit 2.
YES
(5) Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
Is there voltage to input side of stove limit 2?
(11) YES Replace fan motor.
Is there voltage across stove limit 2?
YES Replace stove limit 2.
NO NO (6) Is there voltage to the input side of the cabinet limit?
YES
(12) NO
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
Is there voltage to terminal 2 of the Ignition Control Module (ICM)?
NO
Correct wiring between terminal 2 of ICM and stove limit 2.
YES
TMB2006S
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Hybrid Timer Control Troubleshooting
40. Unit Will Not Heat – Gas – OPL Models (continued)
Note: Make sure unit is not in a lock out condition.
(13)
Is there voltage at terminal 1 of ICM board?
NO Replace ICM board.
YES
(14)
Is there voltage across the coils of the gas valve?
NO
Correct wiring between gas valve and ICM board.
YES (15)
Is the airflow switch working properly?
NO
Replace airflow switch
YES
Is there gas flow through the gas valve?
NO
Replace gas valve coils or complete gas valve.
NO
Replace high voltage ignition cable or igniter.
YES
Does the igniter spark?
YES
YES Is there a flame?
Unit operational.
NO
TMB2006S TMB2006S
Please see following page for wiring diagram information.
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10
8
6
1
9
2
3
11
4
7
5
12
13
14
TMB2233S
Unit Will Not Heat – Gas – OPL Models
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Hybrid Timer Control Troubleshooting
41. Unit Will Not Heat – Electric OPL Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral.
(6)
(1) Is there voltage at H4-1 of hybrid control?
NO
Is the thermistor operational?
NO
Replace thermistor
NO
Is there voltage to the input side of the cabinet limit?
Correct wiring between cabinet limit and terminal 5 of fan motor centrifugal switch.
YES
YES
YES
Replace hybrid control.
(7)
(2)
Is there voltage at terminal 13 of motor control relay?
NO
Correct wiring between terminal 13 on motor control relay and hybrid control.
Is there voltage across cabinet limit?
YES
Replace cabinet limit.
NO YES (8) (3)
Is there voltage across terminals 13 & 14 of motor control relay?
YES
Replace motor control relay.
NO
Is there voltage to the input side of the stove limit?
Correct wiring between stove limit and cabinet limit.
YES NO (9) (4) Is there voltage at terminal 3 of fan motor centrifugal switch?
NO
Correct wiring between terminal 3 of fan motor centrifugal switch and terminal 14 of motor control relay.
Is there voltage across the stove limit?
YES
Replace the stove limit.
NO YES
(10)
(5)
Is there voltage across terminals 3 & 5 of fan motor centrifugal switch?
Is there voltage across the coil(s) of the heater contactor(s)?
YES Replace fan motor.
NO
Correct wiring between heater contactor and stove limit.
YES NO
TMB2006S
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41. Unit Will Not Heat – Electric OPL (continued) Note: Please make the oppropriate adjustments if your unit is single phase. (11)
Is there voltage to the L1, L2 and L3 terminals of HC1?
NO
Correct wiring between HC1 and line voltage.
NO
Correct wiring between HC2 and line voltage.
NO
Check for proper operation of contactors, replace them if necessary.
YES (12)
Is there voltage to the L1, L2 and L3 terminals of HC2?
YES (13)(14)(15)
Is there voltage across L3 & L1, L1 & L2 and L2 & L3?
YES
(15)
Is the airflow switch working properly?
NO
Replace airflow switch
Unit is operational
YES
(16)
Do all elements produce heat?
NO
Check elements for shorts or opens. Check wires between contactors and elements.
YES
TMB2053S
Please see following 2 pages for wiring diagram information.
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8
1
2
3
9
4
7
5
6
10
TMB2234S
Unit Will Not Heat – Electric OPL (Sheet 1 of 2)
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Unit Will Not Heat – Electric OPL (Sheet 2 of 2)
12
11
13
14
15
TMB2050S
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Hybrid Timer Control Troubleshooting
WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
42. Error Codes Display
Corrective Action
OP
Open thermistor error.
• •
SH
Shorted thermistor error.
• •
Check thermistor. Replace if inoperative. Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative. Check thermistor. Replace if inoperative. Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative.
AF-1
Airflow switch closed when cycle started. • Check airflow switch. Replace if inoperative.
AF-2
Airflow switch failed to closed after cycle • Check airflow switch. Replace if started. inoperative.
AF (flashing)
106
Definition
Airflow switch opened/closed 5 or more times in a running cycle.
•
Check airflow switch. Replace if inoperative.
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70380601
Section 8 On Premise Micro Control Troubleshooting Models with OM Control Suffix WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
70380601
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107
On Premise Micro Control (OM) Troubleshooting
43. Control Has No Display Control Has No Display
Gas, steam and electric heat. Single and three phase power supply.
(1) Is there power supplied to the unit?
No
Plug unit in and start cycle. (5) Is there 24 VAC across terminals 1 & 4 of transformer secondary?
Yes (2) Is there 120 VAC at input of primary fuses?
No
Correct wiring between primary fuse and power supply.
Yes
No
(6)
Is there 24 VAC across H3-3 and H3-4 on the control?
Yes
Replace transformer.
No
Correct wiring between transformer and control.
(3) Is there 120 VAC at output side of the primary fuses?
Yes No
Replace primary fuse(s).
Is the control fuse functional?
No
Replace control fuse.
Yes (4) Is there 120 VAC across terminals 1 & 2 of transformer primary?
Yes Correct wiring No between primary fuse and transformer.
Replace control.
Yes TMB2251S
108
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70380601
On Premise Micro Control (OM) Troubleshooting
Control Has No Display 3
2 1
4
5 6
TMB2280S
70380601
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109
On Premise Micro Control (OM) Troubleshooting
44. Door Open Indicator Door Open Indicator
Gas, steam and electric heat. Single and three phase power supply.
(1) Is there 24 VAC between H2-8 and H2-9?
Yes
Is there 24 VAC across terminals 2 & 3 of transformer secondary?
No
Plug unit in and start cycle.
(2)
Yes
No
Correct wiring between primary fuses and power supply.
Is there 120 VAC at output side of the primary fuses?
No Replace primary fuse(s).
Replace transformer.
(6) No
Correct wiring between secondary fuse and transformer.
Yes (7) Is there 24 VAC at output side of secondary fuse?
(3)
No
Yes
Is there 24 VAC at the input of the secondary fuse?
Yes
Is there 120 VAC at input of primary fuses?
(5)
Replace control.
No
Is there power supplied to the unit?
Reference voltage checks to transformer neutral.
No
Replace secondary fuse.
Yes (8) Is there 24 VAC at COM of door switch?
Yes (4) Is there 120 VAC across terminals 1 & 2 of transformer primary?
Yes
110
No
Correct wiring between primary fuses and transformer.
No
Correct wiring between COM and output of secondary fuse.
Yes Continued on next page
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TMB2252S-a
70380601
On Premise Micro Control (OM) Troubleshooting
44. Door Open Indicator (continued) Continued from previous page
(9) With door closed is there 24 VAC to N.O. of door switch?
No
Check for proper function of door switch, replace if necessary.
Yes (10) Is there 24 VAC at COM of lint panel switch?
No
Correct wiring between N.O. on door switch and COM on lint panel switch.
Yes (11) Is there 24 VAC at N.O. of lint panel switch with lint panel closed?
No
Check lint panel switch for proper operation, replace if necessary.
Yes Correct wiring between H2-8 of electronic control and N.O. of lint panel switch.
TMB2252S-b
Please see following page for wiring diagram information.
70380601
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111
On Premise Micro Control (OM) Troubleshooting
Door Open Indicator 2
3
4
5
6 7
8
9 10 11
1
TMB2280S
112
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70380601
On Premise Micro Control (OM) Troubleshooting
45. Motor Will Not Start/Run Note: Test conducted with vend price satisfied and start button pressed.
Motor Will Not Start/Run (1) Is there voltage between H2-7 and H2-9?
No
Replace control.
Gas, steam and electric heat. Single and three phase power supply. (3)
Is there supply voltage at black wire on the motor control relay?
No
Correct wiring between black wire and power supply.
Yes Yes
(4)
(2) Is there 24 VAC across the coil of the motor control relay?
No
Correct wiring to coil of motor relay .
Is there supply voltage at black wire on the motor control relay?
No
Replace motor control relay.
Yes Yes Note: For high voltage three Single phase supply (200 volts or phase Is the unit higher), the motor is equipped with single supplied by L1, L2, phase or three phase L3 through the motor power? contactor terminals T1, T2, T3. Make the appropriate adjustments when doing voltage checks. 3 phase
Is there supply voltage at terminals 5, 3 and 1 at the motor contactor?
Correct wiring No between L1, L2, L3 and power supply.
No
Correct wiring between motor and motor control relay.
Yes
Is there supply voltage at terminals 6, 4 and 2 on the motor contactor?
(8) Is there supply voltage between L1-L2, L2-L3 and L1-L3 and T1-T2, T2-T3 and T1-T3 of motors?
Yes (7)
70380601
Is there supply voltage across terminals 1 & 4 of the motor?
Replace motor.
(6)
No
(5)
Yes
No
Correct wiring between motor and motor contactor.
Replace motor control relay. Yes Replace motor.
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TMB2282S
113
On Premise Micro Control (OM) Troubleshooting
Motor Will Not Start/Run – Single Phase
3
4
5
1
2
TMB2280S
114
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70380601
On Premise Micro Control (OM) Troubleshooting
Motor Will Not Start/Run – 3 Phase 6
7 8
2
1
TMB2281S
70380601
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115
On Premise Micro Control (OM) Troubleshooting
46. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat.
Unit Will Not Heat – Gas
(6)
(1) Is there voltage at H2-5 of control?
All voltage checks are referenced to transformer neutral.
Is the thermistor operational?
No
Yes
Is there voltage to terminal 3 of the motor contactor?
No
Correct wiring between motor terminal 3 and motor contactor.
No Yes
Yes (7) Replace thermistor.
Replace control.
(2) Is there voltage to the common of the airflow switch?
No
Correct wiring between airflow switch and cabinet limit.
Yes (3) Is there voltage to the N.O. terminal of the airflow switch?
No
Check for proper operation of airflow switch. Replace if necessary.
Yes (4) Is there voltage on BRN wire on motor contactor?
No
Correct wiring between H2-5 and motor contactor.
Is there voltage at terminal 5 of the fan motor?
(8) Is there voltage to the input of the cabinet limit?
No
No
Check motor for proper operation. Replace if necessary.
Correct wiring between cabinet limit and terminal 5 of fan motor.
Yes (9) Is there voltage to the output of the cabinet limit?
No
Check cabinet limit for proper operation. Replace if necessary.
Yes (10)
Yes
Is there voltage to the input of the stove limit 1?
(5) Is there voltage at ORG/WHT wire on motor contactor?
Yes
116
No
No
Replace motor contactor.
Correct wiring between stove limit 1 and normally open terminal of the airflow switch.
Yes Continued on next page
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TMB2283S-a
70380601
On Premise Micro Control (OM) Troubleshooting
46. Unit Will Not Heat – Gas (continued) Continued from previous page Yes (11) Is there voltage to the output side of the stove limit 1?
(16) No
Check operation of stove limit 1. Replace if necessary.
Is there voltage across the coils of the gas valve?
No
Correct wiring between gas valve and ICM board.
Yes
Yes (12) Is there voltage to the input side of the stove limit 2?
No
Correct wiring between stove limit 2 and stove limit 1.
Is there gas flow through the gas valve?
No
Replace gas valve coils or complete gas valve.
Yes Yes (13) Is there voltage to the output side of the stove limit 2?
No
Check operation of stove limit 2. Replace if necessary.
Does the igniter spark?
No
Replace high voltage ignition cable, igniter or ICM board.
Yes Yes (14) Is there voltage to terminal 2 of the Ignition Control Module (ICM)? Yes (15) Is there voltage at terminal 1 of ICM board?
No
Correct wiring between terminal 2 of ICM and stove limit.
Is there a flame?
Yes
Unit operational.
No Note: Make sure unit is not in a lockout condition. No
Replace ICM board.
TMB2283S-b
Yes
Please see following page for wiring diagram information. 70380601
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117
On Premise Micro Control (OM) Troubleshooting
Unit Will Not Heat – Gas 1
4
5
6
7
8
9
10
11
12 13 14
2
16
3
15
TMB2280S
118
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70380601
On Premise Micro Control (OM) Troubleshooting
47. Unit Will Not Heat – Steam Note: Tests are conducted with unit running and calling for heat.
Unit Will Not Heat – Steam
All voltage checks are referenced to transformer neutral. Yes (6)
(1) Is there voltage at H2-5 of control?
Is the thermistor operational?
No
Yes
Is there voltage to terminal 3 of the motor contactor?
No
Correct wiring between motor terminal 3 and motor contactor.
No Yes
Yes Replace thermistor.
Replace control.
(2) Is there voltage to the common of the airflow switch?
No
Correct wiring between airflow switch and cabinet limit.
Yes (3) Is there voltage to the N.O. terminal of the airflow switch?
No
Check for proper operation of airflow switch. Replace if necessary.
Yes (4) Is there voltage on BRN wire on motor contactor?
No
Correct wiring between H2-5 and motor contactor.
(7) Is there voltage at terminal 5 of the fan motor?
No
Check motor for proper operation. Replace if necessary.
Yes (8) Is there voltage to the input of the cabinet limit?
No
Correct wiring between cabinet limit and terminal 5 of fan motor.
Yes (9) Is there voltage to the output of the cabinet limit?
No
Check cabinet limit for proper operation. Replace if necessary.
Continued on next page
Yes (5) Is there voltage at ORG/WHT wire on motor contactor?
No
Replace motor contactor.
Yes
70380601
TMB2284S-a
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119
On Premise Micro Control (OM) Troubleshooting
47. Unit Will Not Heat – Steam (continued) Continued from previous page
(10) Is there 24 VAC across the coil of the steam valve?
No
Correct wiring between steam valve coil and motor.
Yes
Does the steam valve coil have continuity?
No
Replace the steam valve coil.
No
Connect the steam supply.
Yes
Is the steam supply functional?
Yes
Replace or rebuild the steam valve.
TMB2284S-b
Please see following page for wiring diagram information. 120
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70380601
On Premise Micro Control (OM) Troubleshooting
Unit Will Not Heat – Steam 1
4
2
5
6
7
8
9
3
10 TMB2280S
70380601
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121
On Premise Micro Control (OM) Troubleshooting
48. Unit Will Not Heat – Electric Note: Tests are conducted with unit running and calling for heat.
Unit Will Not Heat – Electric
(6)
(1) Is there voltage at H2-5 of control?
All voltage checks are referenced to transformer neutral.
Is the thermistor operational?
No
Yes
Is there voltage to terminal 3 of the motor contactor?
No
Correct wiring between motor terminal 3 and motor contactor.
No Yes
Yes (7) Replace thermistor.
Replace control.
(2) Is there voltage to the common of the airflow switch?
No
Correct wiring between airflow switch and cabinet limit.
Yes (3) Is there voltage to the N.O. terminal of the airflow switch?
No
Check for proper operation of airflow switch. Replace if necessary.
Yes (4) Is there voltage on BRN wire on motor contactor?
No
Correct wiring between H2-5 and motor contactor.
Is there voltage at terminal 5 of the fan motor?
(8) Is there voltage to the input of the cabinet limit?
No
No
Check motor for proper operation. Replace if necessary.
Correct wiring between cabinet limit and terminal 5 of fan motor.
Yes (9) Is there voltage to the output of the cabinet limit?
No
Check cabinet limit for proper operation. Replace if necessary.
Yes (10)
Yes
Is there voltage to the input of the stove limit ?
(5) Is there voltage at ORG/WHT wire on motor contactor?
Yes
122
No
No
Replace motor contactor.
Correct wiring between stove limit and normally open terminal of the airflow switch.
Yes Continued on next page
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TMB2286S-a
70380601
On Premise Micro Control (OM) Troubleshooting
48. Unit Will Not Heat – Electric (continued) Continued from previous page (14)(15) (11) Is there voltage to the output side of the stove limit?
No
Check operation of stove limit. Replace if necessary.
Is there supply voltage across T1-T2, T2-T3 and T1-T3 ?
No
Check for proper operation of contactors, replace them if necessary.
Yes
Yes (12) Is there supply voltage to the L3-L1, L1-L2 and L3-L2 terminals of HC2?
No
Correct wiring between HC2 and line voltage.
Do all elements produce heat (glow a slight orange color)?
No
Check elements for shorts or opens. Check wires between contactors and elements.
Yes
Yes (13) Is there supply voltage to the L1-L2, L2-L3 and L1-L3 terminals of HC1?
No
Correct wiring between HC1 and line voltage.
Unit operational.
Yes TMB2286S-b
Please see following page for wiring diagram information. 70380601
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123
On Premise Micro Control (OM) Troubleshooting
Unit Will Not Heat – Electric 13
12
15
14
1
6
2
3
4
7
8
9
10
11
5 TMB2285S
124
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70380601
On Premise Micro Control (OM) Troubleshooting
WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the dryer(s) before servicing. • Close gas shut-off valve to gas dryer(s) before servicing. • Never start the dryer(s) with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the dryer is properly grounded. W001R1
49. Error Codes OP - Indicates physical “open” in the thermistor circuit. Possible causes are: 1) thermistor, 2) wiring between control and thermistor, 3) control. SH - Indicates a “short” in the thermistor circuit. Possible causes are: 1) shorted thermistor, 2) a short in the wiring between control and thermistor, 3) control.
Display
70380601
Definition
Corrective Action
OP
Indicates an open circuit in the thermistor. • Check thermistor. Replace if inoperative. • Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative.
SH
Indicates a short circuit in the thermistor.
• •
Check thermistor. Replace if inoperative. Check wiring between control and thermistor. Refer to wiring diagram for proper wiring. • Check control. Replace if inoperative.
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125
Section 9 Quantum Control Troubleshooting Models with LC, LX, LY, WC, WX and WY Control Suffixes WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: • Disconnect electric power to the tumbler before servicing. • Close gas shut-off valve to gas tumbler before servicing. • Close steam valve to steam tumbler before servicing. • Never start the tumbler with any guards/panels removed. • Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumbler is properly grounded. W002
126
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70380601
Quantum Control Troubleshooting
50. No Infrared Communication Gas and electric heat. Single and three phase power supply.
Attempt to communicate with the electronic control from the PDA.
Check the following: Is there a response of any kind from the electronic control?
No
Aim PDA closer and try again.
Yes
Does the electronic control display E:OF or -C-?
Does the control respond?
No
- ls the battery low on the PDA? - Is the IR window covered or blocked on the control? - If needed, replace the electronic control.
Yes
-C-
Communication sequence checks out.
E:OF
Check the following: - Is IR communication disabled by manual programming? - Is the IR window on the control covered or blocked? - If needed, change control board.
TMB2269S
70380601
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127
Quantum Control Troubleshooting
51. Coins Ignored When Entered Gas and electric heat. Single and three phase power voltage. Start coin drop diagnostic tests.
Does the display on the electronic control increment properly?
NOTE: Refer to Programming Manual for test procedures.
Yes
Exit diagnostic testing and reset control. (Prompting for vend price)
No
Reconnect and run diagnostic test again.
No
Reconnect and run diagnostic test again.
No
Is connector H5 on the control firmly seated in its receptacle?
Yes
Is the 3 pin connector between coin drop and control connected correctly?
Yes
Are wires exiting coin drop optical sensor cracked or broken?
Yes Replace coin drop.
No
Replace coin drop. If problem still exists, then replace the electronic control. TMB1794S
128
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70380601
Quantum Control Troubleshooting
52. No Display (1)
Is there 24 volts AC across terminals H1-1 and H1-3 on control?
Yes
Replace the electronic control.
No
(2)
Is the secondary fuse good?
No Replace the fuse.
Yes
(3)
Is there 24 volts AC across the red/blue and wht/blue wires on the secondary side of the transformer?
Yes
Correct the wiring between the transformer secondary and the electronic control.
No
(4)
Is line voltage present across the black and lt blue wires on the primary side of the transformer?
Yes
Replace the transformer.
No
(5)
Is the primary fuse good?
No
Replace the primary fuse.
Yes
Correct wiring from terminal block to transformer. Verify that the unit is connected to power and the power is on. TMB2299S
70380601
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129
Quantum Control Troubleshooting
No Display
5
2
1
4
3
TMB2295S
130
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70380601
Quantum Control Troubleshooting
53. “Door Open” Indicator Note: All voltages are to be measured to transformer common, unless otherwise stated.
“Door Open” Indicator
(1) Is there 24 volts across terminals H5-7 and H5-4 on the control?
Yes
Replace control.
No (2) Is there 24 volts to the normally open contact on the lint panel switch?
Yes
Correct the wiring between the N.O. terminal on the lint panel switch to terminal H2-1 on the control.
(3) Yes
Replace the lint panel switch.
(4) Is there 24 volts at the normally open terminal of the door switch with the door closed?
Yes
Correct the wiring between the door switch and the lint panel switch.
Yes
(8)
Yes
Correct wiring between the transformer and the fuse.
No
Yes
Replace transformer.
No (10)
(5) Check door switch Yes for proper operation. Replace if necessary.
Yes
No
Replace the primary fuse.
Correct wiring from terminal block to transformer. Verify that unit is connected to power and the power is on.
No
70380601
Check fuse. Replace if necessary.
No
Is the primary fuse good?
No Is there 24 volts to the common terminal of the door switch?
(7) Is there 24 volts to the input side of the secondary fuse?
(9) Is line voltage present across the black and lt blue wires on the primary side of the transformer?
No
Yes
Correct the wiring between the fuse and the common terminal of the door switch.
No
Is there 24 volts across terminals 2 and 3 of the transformer secondary?
No
Is there 24 volts to the common terminal of the lint panel switch?
(6) Is there 24 volts to the output side of the secondary fuse?
TMB2271S
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131
Quantum Control Troubleshooting
“Door Open” Indicator
10
1 9
2
3
4
8
7 6
5
TMB2295S T
132
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70380601
Quantum Control Troubleshooting
54. No Start/Run *Note: For steps 2 and 3. For 208/240 1 phase, both lines to the motor are controlled by contacts. Please check second set of contacts. For 3 phase units, the three legs supplied to the moter will be controlled by N.O. contacts. Please check all three legs.
(1)
Is there line voltage across terminals 1 and 4 of the motor?
Yes
Check motor for proper operation. Replace if necessary.
No
(2)
Is there voltage on the output of the motor relay?*
(5)
Yes
Correct wiring between the motor relay and the motor.
No
Is there 24 volts at terminal H5-3 on the control? Measured to transformer neutral.
Yes
Correct wiring between control and motor relay coil.
No
(3)
Is there voltage to the input side of the motor relay?*
(6)
No
Correct wiring supplying voltage to the contacts of the motor relay.
Yes
Is there 24 volts to terminal H5-7 on the control?
Yes
Press the start button. If machine does not start, replace control.
No
(4)
Is there 24 Volts across the coil of the relay?
Yes
Check relay for proper operation. Replace if necessary.
Correct wiring to the control. Refer to “ ‘Door Open’ Indicator.”
No
TMB2272S
70380601
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133
Quantum Control Troubleshooting
No Start/Run
3
3 2
2
1
4
1
5
6
TMB2295S
134
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70380601
Quantum Control Troubleshooting
55. Unit Will Not Heat – Gas Note: Tests are conducted with unit running and calling for heat. (6) All voltage checks are referenced to transformer neutral. Is there voltage at terminal 5 of the fan motor relay?
(1)
Is there voltage at H5-13 of control?
Correct wiring between H5-13 and N.O. of airflow switch.
No
No
Check motor or replace if necessary.
No
Correct wiring between cabinet limit and terminal 5 of fan motor.
No
Check cabinet limit for proper operation. Replace if necessary.
Yes
(7) Yes Replace control.
Replace thermistor.
(2)
No
Is there voltage at H5-1 of control?
No
Is the thermistor operational?
Yes
Yes
Yes
(8)
Is there voltage to the output of the cabinet limit?
(3)
Is there voltage at input terminal of the motor control relay?
Is there voltage to the input of the cabinet limit?
No
Correct wiring between input and H5-1.
Yes
(9) Yes Is there voltage to the input of the stove limit?
(4)
Is there voltage at the output terminal of the fan motor relay?
No
Correct wiring between cabinet limit and stove limit thermostat.
No Replace relay.
Yes
(10) Yes Is there voltage to the output side of the stove limit?
(5)
Is there voltage at terminal 3 of the fan motor?
Yes
No
Check wiring between motor terminal 3 and motor relay.
No
Check operation of stove limit. Replace if necessary.
Yes
Continued on next page
TMB2275S-a
70380601
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135
Quantum Control Troubleshooting
55. Unit Will Not Heat – Gas (continued)
Yes Is there a flame?
Continued from previous page
Unit operational.
No
(11) Is there voltage to terminal 2 of the Ignition Control Module (ICM)?
No
Correct wiring between terminal 2 of ICM and stove limit.
Yes Note: Make sure unit is not in a lockout condition.
(12)
No
Is there voltage at terminal 1 of ICM board?
Replace ICM board.
Yes
(13)
Is there voltage across the coils of the gas valve?
No
Correct wiring between gas valve and ICM board.
No
Replace gas valve coils or complete gas valve.
No
Replace high voltage ignition cable or igniter.
Yes
Is there gas flow through the gas valve?
Yes
Does the igniter spark?
Yes
TMB2275S-b
Please see following page for wiring diagram information. 136
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
70380601
Quantum Control Troubleshooting
Unit Will Not Heat – Gas
1 2
5
4
3
6
8
10
9
11
70380601
7
12
13
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TMB2295S
137
Quantum Control Troubleshooting
56. Unit Will Not Heat – Steam Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral.
(6)
(1) Correct wiring between H5-13 and N.O. of airflow switch.
No
Is there voltage at H5-13 of control?
No
Check motor or replace if necessary.
No
Correct wiring between cabinet limit and terminal 5 of fan motor.
No
Check cabinet limit for proper operation. Replace if necessary.
No
Check steam valve for proper operation. Replace if necessary.
Yes
Yes Replace control.
Replace thermistor.
(2)
(7)
No
Is there voltage at H5-1 of control?
Is there voltage at terminal 5 of fan motor relay?
Is there voltage to the input of the cabinet limit?
No
Is the thermistor operational?
Yes
Yes Yes
(8)
(3)
Is there voltage at input terminal of the motor control relay?
No
Correct wiring between input terminal and H5-1.
Yes
Yes
(9)
(4) Is there voltage at the output terminal of the fan motor relay?
Is there voltage to the output of the cabinet limit?
No Replace relay.
Does the steam valve open?
Yes
Yes
(5)
Is there voltage at terminal 3 of the fan motor?
No
Check wiring between motor terminal 3 and motor relay.
Verify that the correct steam is supplied to the unit. Verify that the steam valve and other items were installed according to the Installation Manual.
Yes
TMB2276S
138
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70380601
Quantum Control Troubleshooting
Unit Will Not Heat – Steam
1 2
3
4
5
6 8 7
9
TMB2295S
70380601
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139
Quantum Control Troubleshooting
57. Unit Will Not Heat – Electric Note: Tests are conducted with unit running and calling for heat. All voltage checks are referenced to transformer neutral.
(6)
(1) Correct wiring between H5-13 and N.O. of airflow switch.
No
Is there voltage at H5-13 of control?
Check motor or replace if necessary.
No
Correct wiring between cabinet limit and terminal 5 of fan motor.
No
Check cabinet limit for proper operation. Replace if necessary.
Replace control.
Replace thermistor.
(2)
(7)
No
Is there voltage to the input of the cabinet limit?
No
Is the thermistor operational?
Yes
Yes Yes
(8)
(3)
Is there voltage at input terminal of the motor control relay?
No
Correct wiring between input terminal and H5-1.
(9)
(4) Is there voltage at the output terminal of the fan motor relay?
No Replace relay.
Is there voltage to the input of the stove limit?
No
Correct wiring between stove limit and normally open terminal of the airflow switch.
Yes
Yes
(10)
(5)
Is there voltage at terminal 3 of the fan motor?
Is there voltage to the output of the cabinet limit?
Yes
Yes
Yes
No
Yes
Yes
Is there voltage at H5-1 of control?
Is there voltage at terminal 5 of fan motor relay?
No
Check motor for proper operation. Replace if necessary
Is there voltage to the output side of the stove limit?
No
Check operation of stove limit. Replace if necessary.
Yes
Continued on next page
TMB2277S-a
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Quantum Control Troubleshooting
57. Unit Will Not Heat – Electric (continued) Continued from previous page
(11)
Is there voltage across the coil(s) of the heater contactor(s)?
No
Correct wiring between heater contactor and stove limit.
No
Correct wiring between HC1, HC2 and line voltage.
No
Check for proper operation of contactors. Replace if necessary.
Yes
(12)
Is there voltage to the input terminals of HC1 and/or HC2?
Yes
(13)
Is there voltage to the output side of HC1/HC2 contacts?
Yes
Do all elements produce heat (glow a slight orange color)?
No
Check elements for shorts or opens. Check wires between contactors and elements.
Yes
Unit is operational.
TMB2277S-b
Please see following page for wiring diagram information.
70380601
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Unit Will Not Heat – Electric 12
12
13
13
12
2 1
3
5
4
13
6
8
7
11
10
9
TMB2296S
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Quantum Control Troubleshooting
58. CE Models No Display (1)
Is there voltage across H1-1 and H1-3 on the control?
(5)
Yes Replace the control.
Is there line voltage on the output side of the primary fuse?
Yes
Correct wiring between primary fuse and transformer.
No
No
(2)
Is there voltage coming out of fuse F4?
(6)
Yes
Correct wiring between fuse F4 and control.
No
Is there line voltage on the input side of primary fuse?
Yes
Replace primary fuse.
No
(2)
No Is fuse F4 good?
Replace fuse.
Verify that unit is plugged in. Correct wiring between supply terminals and fuse F1.
Yes
(3)
Is there voltage across terminals 1 and 4 of the transformer?
Yes
Correct wiring between transformer and fuse.
No
(4)
Is line voltage supplied to the transformer primary?
Yes
Check transformer for operation. Replace if necessary.
No
TMB2288S
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143
Quantum Control Troubleshooting
CE Models No Display
6 5 4 2
3
1
TMB2297S
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Quantum Control Troubleshooting
59. CE Models “Door Open” Indicator Note: All voltage checks are referenced to the transformer common unless otherwise stated.
(6)
(1)
Is there voltage across terminals H5-7 and H5-3 on the control?
Yes Replace control.
No
Is there voltage on output side of F3?
Yes
Correct wiring between F3 and DS.
No
(7)
(2) Is there voltage at COM terminal of lint door switch (LDS)?
Yes
Correct wiring between loading door and control.
Is there voltage to input side of F3?
Yes Replace fuse.
No
No
(8)
(3)
Is there voltage at N.C. terminal of LDS?
Yes
Make sure lint door is closed. Check function of LDS. Replace if necessary.
Is there voltage on the secondary side of transformer?
Yes
Correct wiring between fuse and transformer.
Yes
Replace transformer.
No
No
(9)
(4) Is there voltage at COM terminal of door switch (DS)?
Yes
Correct wiring between DS and LDS.
Is there voltage supplied to the primary of the transformer?
No
No
(5)
Is there voltage at N.C. terminal of DS?
(10) Yes
Make sure door is closed. Check function of DS. Replace if necessary.
Verify primary fuses are good. Replace if necessary. Check and correct wiring between power terminal block and transformer. Verify machine has supply voltage.
No
TMB2289S
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CE Models “Door Open” Indicator
10 8 9 7 6 1 5 4
3 2
TMB2297S
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Quantum Control Troubleshooting
60. CE Models No Start/Run Note: Voltage checks referenced to transformer neutral unless otherwise stated.
Note: Common can be neutral or live wire depending on voltage and phase.
(1) Is there line voltage supplied to the motor?
(4)
Yes
Check operation of motor. Replace if necessary.
No
Is there voltage across the coil of the motor relay?
Check for proper operation of relay. Replace if necessary.
Yes
Correct wiring between control and motor relay.
Yes
Press start button. If machine doesn’t start, replace control.
No
(2) Is there voltage on the output side of the motor relay terminals? Check to common line.
(5)
Yes
Correct wiring between motor relay and motor.
No
Is there voltage across H5-3 and H5-4 of the control?
No
(3) Is there voltage on the input side of the motor relay terminals? Check to common line. Yes
Yes
(6)
No
Correct wiring from line supply voltage to motor relay.
Is there voltage to H5-7 on the control?
No
Correct wiring to control. Refer to “CE Models Door Open Indicator.”
TMB2291S
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CE Models No Start/Run
3
3 2
2
1
1
6
5
4
TMB2297S
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Quantum Control Troubleshooting
61. CE Models Will Not Heat – Gas/Steam Note: Test conducted with unit running and calling for heat.
Note: Voltage checks referenced to neutral unless otherwise stated. (1)
Is there voltage on H5-13 on the control?
(7)
No
Check airflow switch (AFS) for proper operation. If needed correct wiring between AFS and H5-13.
Is there voltage to input side of the cabinet limit (CT)?
No
Correct wiring between stove limit and MCS.
No
Check CT for proper operation. Replace if necessary.
Yes
Yes
(2)
Is there voltage at H5-1 of the control?
(8)
No
Check thermistor for proper operation. Replace if necessary. Replace control if thermistor is good.
Is there voltage to the output side of the CT?
Yes
Yes
Steam
See next page
Gas (3)
Is there voltage at terminal 14 of the K2 relay?
(9)
No
Correct wiring between H5-1 on the control and terminal 14 of K2.
No
Correct wiring between ST-1 and CT.
No
Check function of ST-1. Replace if necessary.
Yes
Yes
(4)
Is there voltage at N.O. terminal of the K2 relay?
(10)
No
Check for proper operation of the K2 relay. Replace if necessary.
Is there voltage on output side of ST-1?
Yes
Yes
(5) Is there voltage to the COM terminal of motor centrifical switch (MCS)?
(11)
No
Correct wiring between K2 relay and MCS.
Is there voltage on terminal 4 of ignition control module?
No
(6)
Is there voltage to the output side of the MCS?
(12)
No
Check MCS for proper operation. Replace motor if necessary.
Is there voltage on terminal 2 of ignition module?
No
Correct wiring between terminal 2 and fuse F3.
Yes
Continued on next page
70380601
Correct wiring between terminal 4 and ST-1.
Yes
Yes
Yes
Is there voltage to input of ST-1?
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TMB2292S-a
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Quantum Control Troubleshooting
61. CE Models Will Not Heat – Gas/Steam (continued) Continued from previous page
(GAS)
(13)
Is there voltage supplied to gas valve?
Yes
Check valve for proper operation. Replace if necessary. Verify correct pressure and gas supplied to machine.
Yes
Check SV for proper operation. Replace if necessary. Verify steam is properly supplied to machine.
No
Verify control is NOT going into lock-out. Correct wiring between valve and ICM. Replace ICM if necessary.
Continued from previous page
(Steam)
(14)
Is there voltage across steam valve (SV)?
No
Correct wiring between SV and CT. TMB2292S-b
Please see following page for wiring diagram information.
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CE Models Will Not Heat – Gas/Steam
1
7
2
3 4 5 6
8 11
10
12
9
13
14
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62. CE Models Will Not Heat – Electric Note: Test conducted with unit running and calling for heat.
Note: Voltage checks referenced to neutral unless otherwise stated. (1)
Is there voltage on H5-13 on the control?
(7)
No
Check airflow switch (AFS) for proper operation. If needed correct wiring between AFS and H5-13.
Is there voltage to input side of the cabinet limit (CT)?
No
Correct wiring between stove limit and MCS.
No
Check CT for proper operation. Replace if necessary.
No
Correct wiring between ST and CT.
No
Check function of ST. Replace if necessary.
Yes
Yes
(2)
Is there voltage at H5-1 of the control?
(8)
No
Check thermistor for proper operation. Replace if necessary. Replace control if thermistor is good.
Is there voltage to the output side of the CT?
Yes
Yes
(3)
Is there voltage at terminal 14 of the K2 relay?
(9)
No
Correct wiring between H5-1 on the control and terminal 14 of K2.
Is there voltage to input of ST?
Yes
Yes
(4)
Is there voltage at N.O. terminal of the K2 relay?
(10)
No
Check for proper operation of the K2 relay. Replace if necessary.
Is there voltage on output side of ST?
Yes
Yes
(5)
Is there voltage to the COM terminal of motor centrifical switch (MCS)?
No
Correct wiring between K2 relay and MCS.
No
Check MCS for proper operation. Replace motor if necessary.
Continued on next page
Yes
(6)
Is there voltage to the output side of the MCS?
Yes
TMB2294S-a
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Quantum Control Troubleshooting
62. CE Models Will Not Heat – Electric (continued) Continued from previous page
(11)
Is there line voltage across element contactor coils?
No
Correct wiring to contact coils.
No
Replace contactors.
Yes
Do the contactors pull in?
Yes
Is there voltage on the output side of the contactor?
No
Check for voltage to input side. Correct wiring if necessary. Replace contactor if voltage supplied to input side.
Yes
Is there voltage supplied to elements?
No
Correct wiring between elements and contactors.
Yes
No Is heat produced?
Check element for open CK1. Replace if necessary.
Yes
Unit operational.
TMB2294S-b
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CE Models Will Not Heat – Electric
1 2
3 4 5
6
11
8
7
10
9
TMB2298S
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