Tumble Dryers. Troubleshooting. 50 Pound Capacity 75 Pound Capacity. Refer to Page 7 for Model Numbers.

Transcription

1 Tumble Dryers 50 Pound Capacity 75 Pound Capacity Refer to Page 7 for Model Numbers Troubleshooting T012c Part R1 December 2016

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3 Table of Contents Section 1 Safety Information...5 Locating An Authorized Service Person...6 Section 2 Introduction...7 Model Identification...7 Customer Service...8 Serial Plate Location...8 Safety Warnings and Decals...9 Safety Precautions for Servicing Tumble Dryers...9 How A Tumble Dryer Works...10 Section 3 Troubleshooting Motor Does t Start Motor Overload Protector Cycles Repeatedly Motor Runs But Cylinder Does t Turn Motor Does t Stop Heating Element Does t Heat Or Burner Does t Ignite Gas and Electric Models Pilot Does t Ignite Standing Pilot Ignition Gas Models Pilot Goes Out Standing Pilot Ignition Gas Models Igniter Does t Shut Off After Gas Ignition Automatic Pilot Ignition Gas Models Gas Supply Sufficient But Igniter Does t Glow Glow-Bar Ignition Gas Models Igniter Glows, Sensor Opens But Ignition Johnson Controls System Gas Models Igniter Glows, Sensor Opens But Ignition White Rodgers Glow-Bar Ignition Gas Models Burner Ignites and Goes Out Repeatedly Glow-Bar Ignition Gas Models Heating Element or Burner Shuts-Off Prematurely Heating Element or Burner Repeatedly Cycles Off On High Limit Thermostat Heating Element or Burner Does t Shut-Off Clothes Do t Dry Tumble Dryer Overheating Burners t Burning Properly Gas Models Loading Door Opens During Operation Tumble Dryer Runs But Steam To Coils Steam Models Water In Steam Line Steam Models Troubleshooting Electronic Control Models Replacing Inoperative Electronic Control Tumble Dryer Will t Start, Time on Drying Timer, Door Closed Manual Timer Models Motor Runs, Time on Drying Timer But Heat Spark to Pilot Burner Electronic Pilot Ignition Models Spark to Pilot Burner, Pilot Flame Electronic Pilot Ignition Models...44 Copyright 2016, Alliance Laundry Systems LLC All rights reserved. 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 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 1

4 28. Spark To Pilot Burner, Pilot Lights, Main Burner Electronic Pilot Ignition Models Igniter Does t Glow Johnson Controls Glow-Bar System Igniter Glows Constantly Johnson Controls and White Rodgers Glow-Bar System Igniter Glows, Cycles Off But Burner Does t Ignite Johnson Controls Glow-Bar System Igniter Does t Glow White Rodgers Glow-Bar System Igniter Glows, Cycles Off But Burner Does t Ignite White Rodgers Glow-Bar System Igniter Sparks, Main Burner Ignition Instant Electronic Ignition CSH OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat OM Models: Start With Cycle Selected, Start Button Pressed and Door Closed OM Models: Display After Selecting One Of The ON/ SELECT Keys CE OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat CG OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat OM Models: Fan Motor Rotation With Cycle Selected and Start Pressed MM Models: Fan Motor Does t Run With Door Closed, Cycle Selected and Start Button Pressed MM Models: Cylinder Motor Does t Run or Reverse With Door Closed, Cycle Selected and Start Button Pressed In Reversing Mode or nreversing Mode MM Models: Heat With Cycle Selected, Unit Running and Calling For Heat MM Models: Heat With Cycle Selected, Unit Running and Calling For Heat OM Reversing Models: Cylinder Rotation or Reversing Capabilities MM Models: Display After Pressing the ON/SELECT Keys MM Models: Motor Does t Run With Door Closed, Cycle Selected and Start Button Pressed MM Models: Cylinder Motor Does t Run or Reverse With Door Closed, Cycle Selected and Start Button Pressed In Reversing Mode or nreversing Mode MM nreversing Models: Motor Does t Run With Door Closed, Cycle Selected and Start Button Pressed CD Models: Start With Vend Satisfied and Start Button Pushed CD Models: Heat With Vend Satisfied and Unit Running CD Models: Heat With Vend Satisfied and Unit Running CD Models: Start With Vend Satisfied and Start Button Pushed CD Models: Start With Vend Satisfied and Start Button 2 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

5 Pushed...85 Section 4 Adjustments Cylinder Clearance Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 3

6 tes 4 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

7 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 the presence of a hazard that will cause severe personal injury, death, or substantial property damage if the danger is ignored. WARNING WARNING indicates the presence of a hazard that can cause severe personal injury, death, or substantial property damage if the warning is ignored. In the interest of safety, some general precautions relating to the operation of this machine follow. 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 the presence of a hazard that will or can cause minor personal injury or property damage if the caution is ignored. 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 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 5

8 Safety Information IMPORTANT INFORMATION: During the lifetime of a tumble dryer, 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 tumble dryer, and who are equipped with the proper tools and testing equipment. 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 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 tumble dryer. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumble dryer. Always contact your dealer, distributor, service agent or the manufacturer on any problems or conditions you do not understand. 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. 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 6 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

9 Model Identification Information in this manual is applicable to these models: Section 2 Introduction 50 Pound 75 Pound ATB50CG DCB50CG DCB50EG DTB50CG DTB50EG JC50CG JC50EG JCB50CG JCB50EG JT37CG JT37CGI JT37EG JT37EGI JT50CG JT50CGI JT50EG ATB75CG DCB75CG DCB75FG DTB634 DTB75CG DTB75EG DTB75FG JCB75CG Gas Steam/Thermal Oil Electric JT50EGI JTB50CG JTB50EG SC50CG SC50EG SCB50CG SCB50EG ST37CG ST37CGI ST37EG ST37EGI ST50CGI ST50EGI STB50CG STB50EG TKD50CGMT JT75CG JT75EG JTB75CG JTB75EG SCB75CG ST75CG STB634 STB75CG STB75EG ATB50CSH DCB50CSH DTB50CSH DTB50CSL JC50CSH JCB50CSH JT37CSH JT37CSL JT50CSH JT50CSL ATB75CSH DCB75CSH DCB75CSL DTB75CSH DTB75CSL JCB75CSH JCB75CSL JT75CSH JT75CSL JTB50CSH JTB50CSL SC50CSH SCB50AT SCB50CSH ST37CSH ST37CSL ST50CSH ST50CSL STB50CSH STB50CSL JTB75CSH JTB75CSL SCB75CSH SCB75CSL ST75CSH ST75CSL STB75CSH STB75CSL DCB50CE DTB50CE JC50CE JCB50CE JT37CE JT50CE JTB50CE SC50CE SCB50CE ST37CE ST50CE STB50CE TKD50CEMT DCB75CE DTB75CE JCB75CE JT75CE JTB75CE SCB75CE ST75CE STB75CE Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 7

10 Introduction Customer Service If literature or replacement parts are required, contact the source from whom the machine was purchased or contact Alliance Laundry Systems at (920) for the name and address of the nearest authorized parts distributor. For technical assistance, call (920) 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(s) as shown. T419IE3B 8 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

11 Introduction 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 tumble dryer. 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. Refer to Parts Manual for ordering replacement decals. Safety Precautions for Servicing Tumble Dryers Disconnect electrical service. Shut off supply gas valve before servicing gas components. Control panel and access panel MUST be reinstalled after inspection or servicing of tumble dryer is completed. Use a non-corrosive leak detection fluid to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! Chain/drive guard MUST be reinstalled after inspection or servicing of tumble dryer is completed. Belt guard MUST be reinstalled after inspection or servicing of tumble dryer is completed. Contactor box cover MUST be reinstalled after inspection or servicing of electric and/or reversing tumble dryer is completed. Loading door switch MUST be operational before putting tumble dryer into service. Junction box cover MUST be reinstalled after inspection or servicing of tumble dryer is completed Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 9

12 Introduction How A Tumble Dryer Works Fresh Air Combustion Air Mixed Air Exhaust Air Standard Models T008CE1A The tumble dryer uses heat, air and movement to dry loads of laundry. When the motor is started, the exhaust fan pulls fresh air in through the air intake and over the heat source (burner flame for gas, heating element for electric, and coil for steam). NOTE: In Energy Saver Models, some of the exhaust air is recirculated. Refer to illustration on next page. The heated air moves into the cylinder, where it is circulated through the laundry by the tumbling action of the cylinder. The air then passes through the lint filter, exhaust fan, and is vented to the outdoors. 10 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

13 Introduction Fresh Air Combustion Air Mixed Air Recirculating Air Exhaust Air Energy Saver Models T007CE1A Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 11

14 tes 12 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

15 Section 3 Troubleshooting 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 tumble dryer components Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 13

16 1. Motor Does t Start Motor does not start the electrical power off or circuit breaker fuse blown? Check power supply or replace fuses. broken, loose, or incorrect wiring? Are improper coins inserted in accumulator? Refer to wiring diagram. Check that proper coins are inserted. the loading door not closed or switch inoperative? the door switch improperly adjusted? Close door or test switch and replace if inoperative. Refer to Installation Manual for door switch adjustment. accumulator knob improperly set after coins were inserted. the run switch accumulator inoperative? Turn knob clockwise to its full limit of travel. Test run switch and replace if inoperative. the start circuit not complete? Press start switch or test switch and replace if inoperative. the motor relay inoperative? Test relay and replace if inoperative. the motor inoperative? Have motor tested and replace if inoperative. continued on next page TMB2131S-a 14 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

17 1. Motor Does t Start (continued) Continued from previous page Are trunnion bearings binding? trunnion bearings. Are idler bearings binding? bearings. timer improperly set? Turn drying timer clockwise to desired setting. timer inoperative? Test timer and replace if inoperative. TMB2131S-b Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 15

18 2. Motor Overload Protector Cycles Repeatedly Motor Overload Protector Cycles Repeatedly voltage correct? Refer to Installation Manual for electrical requirements. clothes load too large? Remove part of load. clothes cylinder binding? Check cylinder for binding. wiring adequate? make-up air adequate? Check with local power company to ensure that wiring is adequate. Refer to Installation Manual for make-up air requirements. lint buildup around tumbler or poor maintenance? Clean lint accumulation on and around the motors. broken, loose or incorrect wiring? Refer to wiring diagram. TMB1904S 16 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

19 3. Motor Runs But Cylinder Does t Turn Motor runs but cylinder does not turn cylinder belt broken or loose? or adjust cylinder belt. sheave loose? Tighten setscrews. drive belt broken or loose? or adjust drive belt. drive chain or sprocket broken or loose? or adjust chain or sprocket. cylinder binding? Check cylinder for binding. motor drive pulley loose? Tighten drive pulley bushing screws. TMB2132S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 17

20 4. Motor Does t Stop Motor does not stop the door switch not working properly? Test switch and replace if inoperative. Refer to Installation Manual for proper switch adjustment. wiring incorrect? Refer to wiring diagram. timer or relay inoperative? Test timer and relay and replace if inoperative. accumulator inoperative? Test accumulator and replace if inoperative. TMB2133S 18 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

21 5. Heating Element Does t Heat Or Burner Does t Ignite Gas and Electric Models Heating element does not heat or burner does not ignite an improper or inadequate exhaust system? Are there blown fuses or tripped circuit breakers in external electric supply line? Refer to Installation Manual for exhaust system requirements. Check fuses or circuit breaker. the airflow switch inoperative? airflow switch out of adjustment? Test switch and replace if inoperative. Check back draft damper for foreign objects, lint accumulation or other causes that may prevent damper from opening. Check exhaust outlet. If a screen has been improperly installed on the outlet, it may be clogged with lint or frozen over in winter. NEVER install a screen over the exhaust outlet. Refer to Installation Manual for airflow switch adjustment. drying timer not selected or inoperative? Set drying timer or replace if inoperative. thermostat inoperative? Test thermostat and replace if inoperative. the lint door panel not closed properly? Open lint door panel, place lint door and panel back on tumbler (ensuring a tight fit). lint buildup? inadequate ductwork and make-up air? Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. Refer to Installation Manual to ensure that ductwork and make-up air openings are sized accurately. there broken, loose or incorrect wiring? Refer to wiring diagram. Continued on next page TMB2134S-a Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 19

22 5. Heating Element Does t Heat Or Burner Does t Ignite Gas and Electric Models (continued) Continued from previous page Gas Models: Are gas valve coils inoperative? Test coils and replace if necessary. Electric Models: Are heating elements or contactors inoperative? Gas Models: an insufficient gas supply? Gas Models: Are the orifices incorrect? Check heat contactors and elements. if necessary. Open partially closed gas shut-off valve or correct low gas pressure. Check manifold pressure and adjust to 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 plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Gas Models: main coil inoperative? Gas Models: redundant coil inoperative? Standing Pilot Ignition Gas Models: pilot not lit? Test main coil and replace if inoperative. Test redundant coil and replace complete gas valve if inoperative. Refer to Installation Manual or instruction plate on back of tumbler for lighting and shutting down standing pilot. Gas Models: an inoperative igniter? Test igniter and replace if inoperative. Standing Pilot Ignition Gas Models: gas valve reset assembly or thermocouple inoperative? Check and replace thermocouple or reset assembly if necessary. Gas Models: the igniter control inoperative? Test igniter control and replace if inoperative. Glow Bar Ignition Gas Models: sensor inoperative? Test sensor and replace if inoperative. TMB2134S-b 20 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

23 6. Pilot Does t Ignite Standing Pilot Ignition Gas Models Pilot does not ignite - Standing Pilot Ignition Gas Models gas shut-off valve to tumbler closed? Open valve. thermocouple inoperative? thermocouple. air present in gas line? Purge air from gas line. pilot assembly inoperative? pilot assembly. pilot orifice incorrect? Tumbler is equipped for type of gas specified on serial plate. If pilot orifice is different from that specified on serial plate, obtain and install correct orifice. pilot gas filter clogged? reset assembly. pilot gas tube or pilot orifice clogged? Clean or replace tube or orifice. TMB2135S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 21

24 7. Pilot Goes Out Standing Pilot Ignition Gas Models Pilot goes out - Standing Pilot Ignition Gas Models exhaust system improper or inadequate? Refer to Installation Manual for exhaust system requirements. pilot orifice incorrect? Tumbler is equipped for type of gas specified on serial plate. If pilot orifice is different from that specified on serial plate, obtain and install correct orifice. lint screen clogged? Remove and clean lint screen. burner flame Improperly adjusted? Close air shutter slightly - A harsh roaring flame will draw pilot flame out. gas valve reset assembly or thermocouple inoperative? Check and replace reset assembly or thermocouple if necessary. carbon accumulation on heated end of pilot thermocouple? Wipe carbon off end of thermocouple. TMB2136S 22 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

25 8. Igniter Does t Shut Off After Gas Ignition Automatic Pilot Ignition Gas Models Igniter does not shut off after gas ignition - Automatic Pilot Ignition Gas Models tumbler not properly equipped for type of gas being used? Tumbler is equipped for type of gas specified on serial plate. If tumbler is equipped for gas different from that specified on serial plate, obtain the necessary components to correct the problem. igniter control inoperative? Test igniter control and replace if inoperative. gas supply insufficient? burner flame improperly adjusted? Open partially closed gas shut-off valve or correct low gas pressure. Refer to Installation Manual for recommended burner flame adjustment. wiring incorrect? Refer to wiring diagram located on back of tumbler or in literature packet. pilot and electrode assembly incorrectly installed? Check assembly for correct alignment. TMB2137S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 23

26 9. Gas Supply Sufficient But Igniter Does t Glow Glow-Bar Ignition Gas Models Gas supply sufficient but igniter does not glow - Glow-Bar Ignition Gas Models Has sensor failed with contacts open? sensor. igniter broken or open? glow bar igniter. no circuit for burner operation? Tumbler is not calling for heat, check the heat circuit to the ignition system. TMB2138S 24 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

27 10. Igniter Glows, Sensor Opens But Ignition Johnson Controls System Gas Models NOTE: To check the primary and secondary valve coil and plunger operation, place fingers on top of coils, cycle the machine and restart ignition circuit, you should feel the primary valve coil plunger open first, followed by glow bar heat up, followed by the sensor opening, and the secondary valve coil plunger opening. If plungers do not open, electrically check the coils. Check gas pressure to tumble dryer. Line pressure should be 7 ± 1/2 inches (Natural Gas) or 11 inches (L.P. Gas) water column pressure. Manifold pressure should be 3.5 inches (Natural Gas) or 11 inches (L.P. Gas) water column pressure. Igniter glows, sensor opens but no ignition - Johnson Controls System Gas Models gas supply insufficient? Check gas supply and pressure. gas flow but no ignition? Remove igniter and bracket and bend L shaped bracket (located on left side of stove) up or down. Reinstall igniter and bracket and check for 1/8 to 1/4 inch gap between bottom of igniter and top of main burner. no gas flow through gas valve? Check primary valve coil and plunger. coil if inoperative, or check for 120 Volts to control relay (PR1) coil contacts (A) and 120 Volts to control relay (PR1) contact number 7. If no voltage, replace control relay (PR1) or check secondary valve coil and plunger operation. coil if inoperative. TMB2139S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 25

28 11. Igniter Glows, Sensor Opens But Ignition White Rodgers Glow-Bar Ignition Gas Models Igniter Glows, Sensor Opens But Ignition - White Rodgers Glow-bar Ignition Gas Models gas supply insufficient? manual shut-off valve in full open position? Check gas pressure. gas flow but no ignition? Gap between igniter and burner must be 1/8 to 1/4 inch. no gas flow through gas valve? Check for volts between red and white wire on gas valve. If correct voltage is present and redundant coil does not click open, replace complete gas valve. If correct voltage is not present, replace diode logic board. If correct voltage is present and redundant coil clicks open, check for volts across the purple wires on the main coil after the igniter cycles off. If voltage is present and main coil does not stay open, replace main coil. If no voltage is present, replace diode logic board. TMB2140S 26 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

29 12. Burner Ignites and Goes Out Repeatedly Glow-Bar Ignition Gas Models Burner ignites and goes out repeatedly - Glow-Bar Ignition Gas Models insufficient gas pressure? Check gas supply and pressure. Low flame will not maintain sensor conductivity. Does tumbler have improper orifices? Tumbler is equipped for type of gas specified on serial plate. If orifices are different from that specified on serial plate, obtain and install correct orifices. Are the burner ports plugged? Check burner tubes for build-up. there inadequate make-up air? Refer to Installation Manual for make-up air requirements. high limit thermostat inoperative? Refer to Heating Element or Burner Repeatedly Cycles Off On High Limit Thermostat flowchart. burner heat not holding sensor contacts open? sensor. the exhaust system improper or inadequate? Refer to Installation Manual for exhaust system equirements. TMB2414S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 27

30 13. Heating Element or Burner Shuts-Off Prematurely Heating element or burner shuts-off prematurely improper or inadequate exhaust and/or make-up air? Refer to Installation Manual for exhaust and make-up air requirements. Glow-Bar Ignition Gas Models: sensor contact closing? sensor. Gas Models: there insufficient gas supply? Open partially closed gas shut-off valve or correct low pressure. high limit thermostat cycling off? Refer to Heating Element or Burner Repeatedly Cycles Off On High Limit Thermostat flowchart. Gas Models: tumbler not properly equipped for type of gas used? Tumbler is equipped for type of gas specified on serial plate. If orifices are different from that specified on serial plate, obtain and install proper orifices. broken, loose or incorrect wiring? Refer to wiring diagram located inside contactor box. Gas Models: burner flame improperly adjusted? Refer to Installation Manual for burner flame adjustment. TMB2415S 28 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

31 14. Heating Element or Burner Repeatedly Cycles Off On High Limit Thermostat Troubleshooting Heating element or burner repeatedly cycles off on high limit thermostat external exhaust system longer than recommended or is there inadequate make-up air? Refer to Installation Manual for exhaust and make-up air requirements. high limit thermostat cycling at too low a temperature? thermostat. lint screen clogged? Remove screen and clean. Lint screen and compartment should be cleaned after every eight hour shift. lint door panel not closed properly? Remove lint door panel, place lint door panel back on tumbler (ensuring a tight fit). lint in tumbler ducts? Clean tumbler ducts. lint in external exhaust system? Disassemble exhaust system and clean. TMB2143S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 29

32 15. Heating Element or Burner Does t Shut-Off Heating element or burner does not shut off Are there impurities on gas valve seat, preventing valve from closing? gas valve. wiring correct? Refer to wiring diagram. drying timer, relay or contactor inoperative? timer, relay or contactor. TMB2144S 30 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

33 16. Clothes Do t Dry Clothes do not dry the heat source inoperative? Refer to Heating Element Does t Heat or Burner Does t Ignite - Gas and Electric Models flowchart Does heat source shut off prematurely? Refer to Heating Element or Burner Shuts-Off Prematurely flowchart. too much water in articles being dried? Remove excess water. the drying timer improperly set? Set selector for higher setting. the voltage incorrect? Refer to Installation Manual for electrical requirements. the clothes load too large? Remove part of load. inadequate make-up air? Refer to Installation Manual for make-up air requirements. the exhaust system improper or inadequate? Refer to Installation Manual for exhaust system equirements. TMB2416S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 31

34 17. Tumble Dryer Overheating Tumbler overheating Gas Models: Does tumbler have incorrect main burner orifices? Obtain and install correct orifices. the exhaust system restricted or inadequate? Remove obstruction or lint build up from exhaust ductwork. Refer to Installation Manual for exhaust system requirements. Gas Models: gas pressure too high or low? Adjust gas pressure as specified on serial plate. the thermostat inoperative? thermostat. the make-up air inadequate? Refer to Installation Manual for make-up air requirements. lint buildup? Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. TMB2146S 32 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

35 18. Burners t Burning Properly Gas Models Burner not burning properly Are burner air shutters incorrectly adjusted? Refer to Installation Manual for proper flame adjustment. the airflow switch not functioning properly? airflow switch. lint/dirt in burner tube? Disassemble burner and blow out the dirt. the gas pressure too high or low? Check serial plate on back of tumbler for correct gas pressure. Does the tumbler have incorrect orifices? 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. the exhaust duct restricted or blocked? Disassemble and clean exhaust system. TMB2147S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 33

36 19. Loading Door Opens During Operation Loading Door Opens During Operation tumbler improperly leveled? Refer to Installation Manual for leveling leg adjustment. clothes load too large? Remove part of load and restart tumbler. door strike adjusted incorrectly? Refer to Installation Manual for strike adjustment. TMB2126S 34 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

37 20. Tumble Dryer Runs But Steam To Coils Steam Models Tumbler runs but no steam to coils - Steam Models Are valves closed? Check all valves in supply and return lines, make sure they are open. steam trap blocked? Remove trap and clean. if inoperative. solenoid valve inoperative? Check operation of solenoid valve. check valve incorrectly installed? Check for inlet and outlet markings on check valve and invert if necessary. strainer clogged? Remove strainer and clean. timer or thermostat inoperative? Test timer or thermostat. if inoperative. TMB2148S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 35

38 21. Water In Steam Line Steam Models Water in steam line - Steam Models steam piping installed incorrectly? Refer to Installation Manual for steam requirements. trap functioning improperly? Check trap for size and capacity. If trap is dirty or sluggish clean thoroughly or replace. Check return line for high back pressure. TMB1887S 36 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

39 22. Troubleshooting Electronic Control Models Troubleshooting electronic control models Display shows PF (MM models) Has tumbler not been run in last six days? Power tumbler for at least two continuous days to recharge battery. Door open light and display flash with door closed Does door switch need adjustment? Adjust and test door switch. Display shows PF (MM models) Has a custom cycle not been programmed into memory? Display shows PF (MM models) battery discharged? Enter a custom cycle into memory. If tumbler has been powered for at least two continuous days, replace battery. Door open light and display flash with door closed door switch faulty? Door open light and display flash with door closed electrical service connected incorrectly? door switch. Check service connections to terminal block in junction box. For 120 or 240 volt tumblers, neutral wire must be connected to terminal marked NEUT. On single phase tumblers, hot wire must be connected to terminal marked L1. A ground wire must be secured to the ground screw in the junction box. Continued on next page TMB2149S-a Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 37

40 22. Troubleshooting Electronic Control Models (continued) Continued from previous page Display shows SH and signal sounds temperature at sensor over 191 F (88.3 C)? Allow tumbler to cool and press ON/SELECT pad. If display still shows SH, replace sensor. Display shows OP and signal sounds three minutes after tumbler is started temperature sensor open? temperature sensor. Display shows SH and signal sounds temperature sensor shorted? temperature sensor. Display shows OP and signal sounds three minutes after tumbler is started temperature at sensor under 24 F (-4.4 C)? If the temperature of the tumbler is above 24 F (-4.4 C), replace temperature sensor. TMB2149S-b 38 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

41 23. Replacing Inoperative Electronic Control On models with an electronic control, when replacing an inoperative electronic control due to burnt pin(s) on the 6- pin wire harness connector block, it may be due to damaged terminals in the harness connector. Damaged terminals in the harness connector will appear burnt or show signs of heat discoloration on the connector block. Refer to Figure 1. When replacing the electronic control, also replace the control wire harness on washers and tumble dryers, or the main wire harness on dryers to avoid repeated damage. Burnt Pin Figure Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 39

42 24. Tumble Dryer Will t Start, Time on Drying Timer, Door Closed Manual Timer Models Tumbler will not start, time on drying timer, door closed manual timer models there line voltage into door switch? Check electrical service to tumbler (fuses/circuit breaker). line voltage on terminal 1 of control relay? relay. there line voltage out of door switch? Adjust door switch rod. Has switch rod mechanically actuated door switch? line voltage into push-to-start switch? Check for broken wire from control relay terminal 1. there line voltage at terminal 3 of control relay? door switch. Check for broken wire or poor connection at harness plug. Press push-to-start switch. line voltage out of push-to-start switch? push-to-start switch. there line voltage across coil terminals of control relay? timer. there line voltage on terminal B of drying timer? line voltage to motor? motor. Check for broken wire or poor connection at harness plug. TMB2150S 40 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

43 25. Motor Runs, Time on Drying Timer But Heat Motor runs, time on drying timer but no heat power out of main control thermostat? Check the ignition circuit. a broken or loose wire at harness plug? Repair wire. power into main control thermostat? main control thermostat. power on red wire from motor? motor. there power on terminal 6 of control relay? Loose or broken wire to main control thermostat. power into airflow switch? Check for loose or broken wire from motor. airflow switch. control relay. power out of airflow switch? airflow switch closed? there power on terminal 4 of control relay? there power across coil terminals of control relay? Adjust airflow switch. Continued on next page TMB2151S-a Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 41

44 25. Motor Runs, Time on Drying Timer But Heat (continued) Continued from previous page power into cabinet high limit thermostat? Check for broken wire from airflow switch. power out of cabinet high limit thermostat? thermostat. power into burner high limit thermostat? Check for broken wire from cabinet high limit. there power out of burner high limit thermostat? burner high limit thermostat. Check for loose or burned connection at harness plug. TMB2151S-b 42 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

45 26. Spark to Pilot Burner Electronic Pilot Ignition Models spark to pilot burner Electronic Pilot Ignition Models 24 volts between terminal 2 and ground on electronic package? Check tumbler heat circuit. ceramic insulator securely bonded to pilot burner assembly (cannot swivel)? pilot and electrode assembly. high tension cable securely attached to ignitor post? Correct. a 7/64 inch gap between electrode and left diverter of pilot burner? pilot and electrode assembly. arcing to left burner? Shift left burner further to left. electronic package. Are there cracks in ceramic insulator encasing ignitor probe? pilot and electrode assembly. TMB2152S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 43

46 27. Spark to Pilot Burner, Pilot Flame Electronic Pilot Ignition Models Spark to pilot burner, no pilot flame Electronic Pilot Ignition Models 24 volts between terminal 1 and ground on electronic package? electronic package. pilot filter, tube or orifice obstructed? Clear obstruction. gas present at pilot burner (disconnect white wire from terminal 3 and light manually)? Refer to Spark to Pilot Burner-Electric Pilot Ignition Models flowchart. Remove black wire from terminal 1. Momentarily touch to terminal 2; is click heard? right coil (pilot operator). TMB2417S 44 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

47 28. Spark To Pilot Burner, Pilot Lights, Main Burner Electronic Pilot Ignition Models Spark to pilot burner, pilot lights, no main burner Electronic Pilot Ignition Models a crack in sensor ceramic insulator? Check gas pressure. Are there 24 volts between terminal 3 and ground on electronic package? left coil (main operator). sensor. wire between sensor and terminal 4 of electronic package connected securely? Correct. sensor securely seated in pilot burner? Correct. pilot filter, tube or orifice obstructed? Clear pilot orifice or use larger pilot orifice. TMB2154S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 45

48 29. Igniter Does t Glow Johnson Controls Glow-Bar System Igniter does not glow Johnson Controls Glow-Bar System 120 volts present between black wire and ground on main thermostat? Check heat circuit. 120 volts present between red and white wires of igniter bracket? igniter. 120 volts present between each of the purple wires of sensor and ground? sensor. TMB2155S 46 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

49 30. Igniter Glows Constantly Johnson Controls and White Rodgers Glow-Bar System Troubleshooting Igniter glows constantly Johnson Controls and White Rodgers Glow-Bar System sensor. TMB2156S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 47

50 31. Igniter Glows, Cycles Off But Burner Does t Ignite Johnson Controls Glow-Bar System Igniter glows, cycles off but burner does not ignite Johnson Controls Glow-Bar System 120 volts present across the two wires of the primary coil? Check for a broken wire between the terminal block and primary coil. Can you feel or hear the primary coil open? primary coil. 120 volts present across the two wires to the secondary coil? 120 volts present on terminals A and 7 of ignition relay? relay. secondary coil. gap between igniter and burner 1/8 to 1/4 inch? Adjust igniter gap to 1/8 to 1/4 inch. TMB2157S 48 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

51 32. Igniter Does t Glow White Rodgers Glow-Bar System Igniter does not glow White Rodgers Glow-Bar System volts present between black wire and ground on main thermostat? Check heat circuit volts present between red and white wires of igniter bracket? igniter volts present between each of the purple wires of sensor and ground? diode logic board. TMB2158S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 49

52 33. Igniter Glows, Cycles Off But Burner Does t Ignite White Rodgers Glow-Bar System Igniter glows, cycles off but burner does not ignite White Rodgers Glow-Bar System volts present across the red and white wires of the redundant coil? diode logic board. Can you hear the main coil click open? main coil. Can you hear the redundant coil open? complete gas valve. the gap between igniter and burner 1/8 to 1/4 inch? Adjust igniter gap to 1/8 to 1/4 inch volts present across the purple wires to the main coil? diode logic board. TMB2159S 50 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

53 34. Igniter Sparks, Main Burner Ignition Instant Electronic Ignition Igniter sparks, no main burner ignition Instant Electronic Ignition igniter sparking? IEI control in safety lockout reset by opening and closing door? Open and close door. green wire from IEI control connected to ground terminal? Connect green wire to ground terminal. resistance of high voltage lead greater than 25,0000 ohms or less than 5,000 ohms? high voltage lead. gas shut-off valve turned on? Open gas shut-off valve. igniter gap not 5/32 inch (.397 cm) or is ceramic cracked? Re-gap or replace igniter. 120 volts present on black wire from IEI control? IEI control. IEI control. Check gas valve coils and replace as required. TMB2160S Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 51

54 35. CSH OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat 120 Volt/60 Hertz/1 Phase and Volt/60 Hertz/1 Phase nreversing Volt/60 Hertz/3 Phase and Volt/60 Hertz/3 Phase Reversing and nreversing CSH OM Models: heat with cycle selected, unit running and calling for heat voltage at H2-13? voltage at H2-6? voltage to the voltage input of the motor at H2-5? relay? micro control. between H2-6 and H2-13. Check for proper thermistor operation. micro control if necessary. between motor relay and micro control. between CR1 and motor relay. to motor switch. motor. voltage to the output of the motor relay? motor relay. 1 Phase Only: there voltage to terminal 3 of CR1? 3 Phase Only: there voltage to the input of the motor switch? voltage to the output of the motor switch? voltage to terminal 5 of CR1? voltage to terminal 3 of the motor? voltage across the coil of CR1? Does CR1 operate? motor. to CR1. CR1. Continued on next page TMB2161S-a 52 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

55 35. CSH OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat (continued) 120 Volt/60 Hertz/1 Phase and Volt/60 Hertz/1 Phase nreversing Volt/60 Hertz/3 Phase and Volt/60 Hertz/3 Phase Reversing and nreversing Continued from previous page voltage across the steam valve coil? to steam valve coil. Unit operational. If unit still doesn t heat, check steam supply. TMB2161S-b Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 53

56 36. OM Models: Start With Cycle Selected, Start Button Pressed and Door Closed 120 Volt/60 Hertz/1 Phase CG & CSH nreversing; Volt/60 Hertz/1 or 3 Phase CSH nreversing; Volt/60 Hertz/3 Phase CE nreversing; Volt/60 Hertz/3 Phase CG, CE and CSH nreversing OM Models: Start with cycle selected, start button pressed and door closed voltage to the primary of the transformer? to transformer primary. Check fuses. voltage to terminal H2-8 on the micro control? between micro control and door switch. 24 VAC across terminals 2 & 3 of transformer secondary? transformer. voltage at terminal H2-7 on the micro control? micro control. voltage to the COM terminal of the door switch? between door switch and transformer. Check fuses. voltage across the coil of motor relay? between motor relay and micro control. voltage to the N.O. terminal of the door switch? Check door switch for proper operation. if necessary. voltage to the input of the motor relay? between motor relay and supply voltage. Continued on next page TMB2162S-a 54 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

57 36. OM Models: Start With Cycle Selected, Start Button Pressed and Door Closed (continued) 120 Volt/60 Hertz/1 Phase CG & CSH nreversing; Volt/60 Hertz/1 or 3 Phase CSH nreversing; Volt/60 Hertz/3 Phase CE nreversing; Volt/60 Hertz/3 Phase CG, CE and CSH nreversing Continued from previous page voltage to the output of the motor relay? motor relay. voltage across terminals 1 and 4 of the motor for single phase units or L1, L2 and L3 of three phase units? between motor and motor relay. Does the motor operate? motor. Unit operational. TMB2162S-b Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 55

58 37. OM Models: Display After Selecting One Of The ON/SELECT Keys 120 Volt/60 Hertz/1 Phase CG and CSH nreversing; Volt/60 Hertz/1 Phase CG and CSH nreversing; Volt/60 Hertz/3 Phase CG and CSH Reversing/nreversing; Volt/60 Hertz/3 Phase CE Reversing/nreversing; Volt/60 Hertz/3 Phase CG, CE and CSH Reversing/nreversing OM Models: display after selecting one of the ON/ SELECT keys voltage aross the primary of the transformer? between transformer and supply voltage. Check fuses. voltage to the opposite side of the fuse on the micro control? Check fuse making sure it is not blown. if necessary. micro control. 24 VAC across terminals 1 & 4 of transformers secondary? transformer. 24 VAC across terminals H3-3 and H3-4 on the micro control? between H3 and transformer. Check fuses. voltage to the input of the fuse on the micro control? micro control. TMB2163S 56 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

59 38. CE OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat Volt/60 Hertz/3 Phase and Volt/60 Hertz/3 Phase Reversing and nreversing CE OM Models: heat with cycle selected, unit running and calling for heat voltage at H2-13? micro control. voltage to terminal 13 of the motor relay? motor relay. voltage at H2-6? between H2-6 and H2-13. voltage to the fan motor switch? between motor switch and motor relay. voltage at H2-5? Check for proper thermistor operation. micro if necessary. voltage at the output of the fan motor switch? fan motor. voltage to terminal 14 of the motor relay? between motor relay and micro. voltage to the input of the cabinet limit? between cabinet limit and fan motor. Continued on next page TMB2164S-a Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 57

60 38. CE OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat (continued) Volt/60 Hertz/3 Phase and Volt/60 Hertz/3 Phase Reversing and nreversing Continued from previous page voltage to the output of the cabinet limit? voltage to the COM terminal of the airflow switch? Check for proper airflow. cabinet limit. between airflow switch and cabinet limit. voltage to HC1? voltage to terminals T1, T2 and T3 of HC1? Correct wiring to HC1. between HC1 and supply. voltage to the N.O. terminal of the airflow switch? Check for proper airflow. airflow switch. voltage to terminals L1, L2 and L3 of HC1? HC1. voltage across the elements? to the elements. voltage to the input of the stove limit? between stove limit and airflow switch. voltage to the output of the stove limit? Check for proper airflow. stove limit if necessary. Do the elements produce heat? NOTE: If elements are glowing a bright red/orange, there is not enough airflow. Check for opens or shorts in the elements. Unit operational. TMB2164S-b 58 Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT

61 39. CG OM Models: Heat With Cycle Selected, Unit Running and Calling For Heat 120 Volt/60 Hertz/1 Phase and Volt/60 Hertz/1 Phase nreversing Volt/60 Hertz/3 Phase and Volt/60 Hertz/3 Phase Reversing and nreversing CG OM Models: heat with cycle selected, unit running and calling for heat voltage at H2-13? voltage at H2-6 of the micro control? voltage at H2-5 voltage to input of the micro control? of the motor relay? micro control. between H2-5 and H2-13 on the micro control. Check for proper thermistor operation. micro control if necessary. between motor relay and micro. voltage to the output of the motor relay? motor relay. between CR1 and motor relay. 1 Phase Models: there voltage to terminal 3 of CR1? to fan motor switch. 3 Phase Models: there voltage to the input of fan motor switch? fan motor. voltage out from the fan motor switch? voltage to terminal 5 of CR1? voltage to terminal 3 of the motor? voltage across the coil of CR1? Does CR1 operate properly? CR1. motor. between CR1 and motor. Continued on next page TMB2165S-a Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 59