Tumble Dryers. Stacked 30 Pound Capacity Stacked 45 Pound Capacity. Starting Serial No Refer to Page 7 for Model Numbers 25 C

Transcription

1 HIGH TEMP MED TEMP START LOW TEMP 25 C HEAT SELECT TEMP INSERT COIN PUSH START SELECT TEMP INSERT COIN PUSH START HIGH TEMP MED TEMP START LOW TEMP 25 C HEAT Tumble Dryers Stacked 30 Pound Capacity Stacked 45 Pound Capacity Starting Serial Refer to Page 7 for Model Numbers Troubleshooting T464PZ3A Part R6 March 2013

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3 Table of Contents Section 1 Safety Information...4 Locating an Authorized Service Person...6 Safety Warnings and Decals...6 Safety Precautions for Servicing Tumble Dryers...6 Section 2 Introduction...7 Model Identification...7 Serial Plate Location...9 Customer Service...9 Wiring Diagram...9 How A Tumble Dryer Works...10 Section 3 Troubleshooting Tumble Dryer Does t Start Motor Does t Start Motor Overload Protector Cycles Repeatedly Motor Runs But Cylinder Does t Turn Motor Does t Stop Heat Condition (n-ce and n-australian Models) Burner Does t Ignite Burner Ignites and Goes Out Repeatedly Burner Does t Shut Off Clothes Do t Dry Tumble Dryer Overheating Burner t Burning Properly Loading Door Opens During Operation Cylinder Continues to Spin with Door Open Coin Does t Fall into Coin Vault or Coin Drop Sensor Does t Register That Coin Has Been Entered Cylinder Is Stained...33 Section 4 Adjustments Loading Door Switch Loading Door Strike Aligning Door Strike Cleaning Coin Drop...35 Section 5 Micro Display Control (MDC) Troubleshooting...38 Models with BC, BG, BL, BX and BY Control Suffixes 21. Coins Ignored When Entered Control Has Display Door Open Indicator Motor Will t Start/Run Unit Will t Heat Gas Unit Will t Heat Steam (T30 Models Only) Unit Will t Heat Electric (T30 Models Only) Error Codes...56 Copyright 2013, 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 R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 1

4 Gas and Steam Models Control Circuit Schematic...57 Control Circuit Connection Diagram...58 Control Box Schematic...59 Control Box Connection Diagram...60 Electric Models Control Circuit Schematic...61 Control Circuit Connection Diagram...62 Contactor Box Schematic...63 Contactor Box Connection Diagram...64 Section 6 NetMaster Troubleshooting...65 Models with NC, NJ, NR, NX, NY, ZC, ZR, ZX and ZY Control Suffixes 29. Infra-red (IR) Communication Coins Ignored When Entered Control Has Display Door Open Indicator Motor Will t Start/Run Unit Will t Heat Gas...79 Section 7 Hybrid Timer Control Troubleshooting...83 Models with QT, SD and SX Control Suffixes 35. Coins Ignored When Entered Control Has Display OPL Models Display Flashes dr With Door Closed OPL Models Vend Satisfied, In Use LED Coin Models In Use LED Lit, Motor Run Coin Models Motor Will t Start/Run Coin Models Motor Will t Start/Run OPL Models Unit Will t Heat Gas Coin Models Unit Will t Heat Gas OPL Models Unit Will t Heat Steam OPL Models (T30 Models Only) Unit Will t Heat Electric Coin (T30 Models Only) Unit Will t Heat Electric OPL (T30 Models Only) Error Codes Section 8 Electronic Control Troubleshooting Models with KC, KX, KY, LC, LX, LY, WC, WX and WY Control Suffixes 48. Infrared CommunicationL and W Control Suffixes Only Coins Ignored When EnteredL and W Control Suffixes Only Display Door Open Indicator Start/Run Unit Will t Heat Gas Unit Will t Heat Steam Unit Will t Heat Electric Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

5 56. CE Models Display CE Models Start/Run CE Models Will t Heat Electric Section 9 LED OPL Control Troubleshooting Models with EO Control Suffix 59. Fan and/or Drive Motor Rotation Stove and Cabinet Limit Errors Display Airflow Errors Fan Motor Centrifugal Switch Error Close Door Indication Moisture Sensor Error Troubleshooting the Moisture Sensor Circuit Troubleshooting at the Control Troubleshooting From Control to Slip Ring Assembly Troubleshooting At Slip Ring Assembly Troubleshooting From Slip Ring Assembly to Moisture Sensing Baffle and Basket Troubleshooting from Basket Shaft to Moisture Sensing Baffle with Machine Basket Removed Troubleshooting at the Moisture Sensing Baffles with Machine Basket Removed Fan Motor Contactor Error Rotation Sensor Error Shorted or Open Thermistor Fuses and Transformer Configuration Jumper Dip Switch/Harness Index Mismatch Electronic Control Testing R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 3

6 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. CAUTION 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 that you understand and have the skills to carry out. 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. W006R1 Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property damage. Additional precautionary statements ( IMPORTANT and TE ) 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. TE: The word TE is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related. 4 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

7 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 tumble dryer before servicing. Never start the tumble dryer with any guards/panels removed. Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumble dryer is properly grounded. W240R1 TE: 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 CANT 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. 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. W R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 5

8 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 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. Safety Precautions for Servicing Tumble Dryers Prior to servicing tumble dryer: Disconnect electrical service and lockout to prevent unintentional connection. Shut off supply gas valve. Allow machine to cool prior to servicing. After servicing tumble dryer: 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 T USE AN OPEN FLAME TO CHECK FOR GAS LEAKS! The loading door switch, lint door switch and airflow switch must be operating properly. 6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

9 Model Identification Information in this manual is applicable to these models. Section 2 Introduction T30 T45 CHD30STG2-CAT30L CHD30STG2-CAT30N CHD30STG2-CTT30L CHD30STG2-CTT30N CHD30STG2-CUT30L CHD30STG2-CUT30N CKT30N DR335 DR335G2-BKT30N DRST30G2-BAT30L DRST30G2-BAT30N DRST30G2-BTT30D DRST30G2-BTT30L DRST30G2-BTT30N DRST30G2-BUT30L DRST30G2-BUT30N GAT30L GAT30N GKT30N GTT30L GTT30N GUT30L GUT30N HAT30L CKT45N CTT45L CTT45N DR445G2-BAT45L DR445G2-BAT45N DR445G2-BKT45N DR445G2-BTT45D DR445G2-BTT45L DR445G2-BTT45N DR445G2-BUT45L DR445G2-BUT45N DRST45G2-BAT45L DRST45G2-BAT45N DRST45G2-BTT45D DRST45G2-BTT45L DRST45G2-BTT45N DRST45G2-BUT45L DRST45G2-BUT45N GAT45L GAT45N Gas Steam Electric HAT30N HKT30N HTT30D HTT30L HTT30N HUT30L HUT30N IPD30STG2 ITT30L ITT30N KAT30L KAT30N KKT30N KTT30L KTT30N KUT30L KUT30N LAT30L LAT30N LKT30N LTT30L LTT30N LUT30L LUT30N GKT45N GTT45L GTT45N GUT45L GUT45N HAT45L HAT45N HKT45N HTT45D HTT45L HTT45N HUT45L HUT45N IPD45STG2 ITT45L ITT45N KAT45L KAT45N KKT45N KTT45L MTT30N NTT30N PAT30L PAT30N PKT30N PTT30L PTT30N PUT30L PUT30N SAT30L SAT30N SKT30N STT30D STT30L STT30N SUT30L SUT30N UAT30L UAT30N UKT30N UTT30L UTT30N UUT30L UUT30N KTT45N KUT45L KUT45N MTT45N NTT45N SAT45L SAT45N SKT45N STT45D STT45L STT45N SUT45L SUT45N UAT45L UAT45N UKT45N UTT45L UTT45N UUT45L UUT45N CHD30STS2-CTT30S CHD30STS2-CUT30S DRST30S2-BTT30S DRST30S2-BUT30S GTT30S GUT30S HTT30S HUT30S IPD30STS2 ITT30S KTT30S KUT30S LTT30S LUT30S PTT30S PUT30S STT30S SUT30S UTT30S UUT30S t Applicable CHD30STE2-CTT30E CHD30STE2-CUT30E DRST30E2-BTT30E DRST30E2-BUT30E GTT30E GUT30E HTT30E HUT30E IPD30STE2 ITT30E KTT30E KUT30E LTT30E LUT30E PTT30E PUT30E STT30E SUT30E UTT30E UUT30E t Applicable See next page for Control Suffixes R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 7

10 Introduction Includes models with the following control suffixes: 3O DX4 OPL EO LED OPL NY NetMaster, prep for card 3V DX4 vended KC single coin QT dual digital timer 3X DX4 prep for coin KX prep for coin SD single drop BC basic electronic, coin KY prep for card SX single drop, prep for coin BG basic electronic, OPL mode LC network adaptable coin WC network ready coin BL basic electronic, central pay LX network adaptable, prep for coin WX network ready, prep for coin BX basic electronic, prep for coin LY network adaptable, prep for card WY network ready, prep for card BY basic electronic, prep for card NC NetMaster coin ZC NetMaster network coin DO DMP OPL NJ micro, prep single card reader ZR NetMaster network card DV DMP vended NR NetMaster card ZX NetMaster network, prep for coin DX DMP prep for coin NX NetMaster, prep for coin ZY NetMaster network, prep for card 8 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

11 Introduction Serial Plate Location When calling or writing for information about your product, be sure to mention model and serial numbers. Model and serial numbers are found on the serial plate on the rear of the machine and inside the upper loading door hinge. 1 1 Serial Plate TMB1974N 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) for the name and address of the nearest authorized parts distributor. 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. For technical assistance, call (920) R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 9

12 Introduction How A Tumble Dryer Works A tumble dryer 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 tumble dryer and over the heat source (burner flame for gas, heating element for electric, and coil for steam) The heated air moves into the cylinder, where it is circulated through the wet load by the tumbling action of the cylinder. The air then passes through the lint filter, exhaust fan, and is vented to the outdoors. 3 T002CE3A 10 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

13 Section 3 Troubleshooting WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: Disconnect electric power to the tumble dryer before servicing. Close gas shut-off valve to gas tumble dryer before servicing. Close steam valve to steam tumble dryer before servicing. Never start the tumble dryer with any guards/panels removed. Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumble dryer is properly grounded. W002R1 IMPORTANT: Refer to wiring diagram for aid in testing tumble dryer components R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 11

14 Troubleshooting 1. Tumble Dryer Does t Start Tumble Dryer does not start Is motor relay inoperative? Test relay and replace if necessary. Is the PUSH-TO-START button not properly activated (Manual Timer Models)? Press and hold PUSH-TO- START button for three seconds. Is loading door open? Close loading door completely. Is drying timer in an off position (Manual Timer Models)? Turn drying timer on. Is the electrical power off or circuit breaker or fuse blown? Check power supply, or replace fuses. Is the lint panel open? Close and lock lint panel. Is there an incorrect amount of coins inserted into coin drop? Check that proper amount of coins are inserted. Is there a blown fuse on tumble dryer? Check fuse (in junction box) and replace if necessary. Is coin drop inoperative? Test coin drop and replace if inoperative. TMB19102SR1 TMB1902SR1 12 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

15 Troubleshooting 2. Motor Does t Start Motor does not start Is there broken, loose, or incorrect wiring? Refer to wiring diagram. Is the electrical power off or circuit breaker fuse blown? Check power supply, or replace fuses. Is the fan or fan motor binding? Replace fan or motor assembly. Is the loading door switch or lint panel switch not closed or switch inoperative? Close door, panel or test switch and replace if inoperative. Is the cylinder or cylinder motor binding? Replace cylinder, bearing, rollers, or motor assembly. Is the door switch improperly adjusted? Refer to Adjustments Section for door switch adjustment. Is the transformer inoperative? Test and replace if necessary. Is the start circuit not complete? Press and hold PUSH-TO-START button for three seconds. Is the motor relay inoperative? Test relay and replace if inoperative. Is the motor inoperative? Have motor tested and replace if inoperative. Is the airflow switch inoperative? (Only on manual timer and rotary coin drop.) Test switch, replace or adjust as required. TMB1903S TMB1903S R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 13

16 Troubleshooting 3. Motor Overload Protector Cycles Repeatedly Motor Overload Protector Cycles Repeatedly Is voltage correct? Refer to Installation Manual for electrical requirements. Is clothes load too large? Remove part of load. Is clothes cylinder binding? Check cylinder for binding. Is wiring adequate? Is make-up air adequate? Check with local power company to ensure that wiring is adequate. Refer to Installation Manual for make-up air requirements. Is there lint buildup around tumble dryer or poor maintenance? Clean lint accumulation on and around the motors. Is there broken, loose or incorrect wiring? Refer to wiring diagram. TMB1904S TMB1904S 14 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

17 Troubleshooting 4. Motor Runs But Cylinder Does t Turn Motor Runs But Cylinder Does t Turn Is cylinder belt broken? Replace cylinder belt. Is cylinder binding? Check cylinder for binding. TMB1905S TMB1905S R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 15

18 Troubleshooting 5. Motor Does t Stop Motor Does t Stop Is the door switch or lint drawer switch not working properly? Test switches and replace if inoperative. Is coin drop not working properly? Test coin drop and replace if inoperative. Is wiring incorrect? Refer to wiring diagram. Is electronic control inoperative? Replace electronic control. Is motor relay inoperative? Test relay and replace if inoperative. TMB1906S TMB1906S 16 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

19 Troubleshooting 6. Heat Condition (n-ce and n-australian Models) WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: Disconnect electric power to the tumble dryer before servicing. Close gas shut-off valve to gas tumble dryer before servicing. Close steam valve to steam tumble dryer before servicing. Never start the tumble dryer with any guards/panels removed. Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumble dryer is properly grounded. W002R1 Ignition Control Module Function There are four components to the ignition system: the module, the spark igniter, the high voltage cable and ground wire. When 24 VAC is applied between the TH and GND terminals on the module, the module will send the high voltage signal to the igniter and 24 VAC to the gas valve coils. Gas will hit the sparking igniter and flame will be established. The igniter being engulfed in flame will create a millivolt electric signal that is sent back to the module by the high voltage cable; this is what the module sees as flame recognition. If the millivolt signal is not at the module in ten seconds, the module will go into safety lockout. The voltage will be cut from the igniter and gas valve coils and will not be restored until voltage is cycled at the module. Intermittent Heat Test Procedure On ignition control modules with date codes higher than 08t2, perform the following test. Start the tumble dryer and run for 10 minutes (verify that the tumble dryer is heating properly). After the 10 minute cycle, re-start the tumble dryer and once again verify the unit is heating. Repeat this procedure 3 times. If the tumble dryer passes this test, the ignition control module is operating properly and SHOULD T be changed. Refer to Troubleshooting Manual for additional service procedures R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 17

20 Troubleshooting 6. Heat Condition (continued) Is the Ignition Control Module s red light on? Refer to Paragraph 7. Does the igniter spark? Is there 24 volts AC between the TH and GND terminals on the module? Refer to Paragraph 7 for heat circuit troubleshooting. Replace igniter and high voltage lead. Retest unit. If unit still does not spark, replace module. Does the igniter spark but no flame is produced? Is there 24 volts AC at the gas valve coils when igniter is sparking? Check wiring between gas valve and module. If wiring is good, replace module. Verify that gas is supplied to the machine. If gas and voltage are present, replace gas valve or coils. Does the flame turn off after igniter stops sparking? Is the igniter positioned properly in the flame, and does the flame look good? Is there continuity between GND terminal on module and machine? Replace module. Adjust position of igniter and retest. Verify machine is properly grounded. Replace igniter and high voltage lead. Retest unit. If it still does not sense flame, replace module. TMB2395S 18 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

21 Troubleshooting 7. Burner Does t Ignite Burner Does t Ignite Is there 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. Is stove limit thermostat 2 inoperative? Is there an insufficient gas supply? 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 pressure specified on serial plate. If pressure cannot be obtained, have your local gas company check main gas pressure. Is drying selector in the Cool Down portion of cycle? Reset switch on microprocessor. Are the orifices incorrect? 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. Is the cabinet thermostat inoperative? Test thermostat and replace if inoperative. Is there lint buildup? Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. Is stove limit thermostat 1 inoperative? Test thermostat 1 and replace if inoperative. Is there inadequate ductwork and make-up air? Refer to Installation Manual to ensure that ductwork and make-up air openings are sized accurately. Continued on next page TMB1907S-A - TMB1907S-a R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 19

22 Troubleshooting 7. Burner Does t Ignite (continued) Continued from previous page Is the IEI control inoperative? Replace IEI control. Is there an improper igniter to burner clearance? Refer to Paragraph 43. Is motor switch inoperative? Replace motor. Are valve coils inoperative? Is there a blown fuse on tumbler? Check valve coils and replace if necessary. Check fuse (located in control box) and replace if necessary. Is there an inoperative microprocessor, accumulator switch (rotary coin drop) or C1 relay (timer models)? Test and replace as needed. Is Gas shut-off valve in the closed position? Open shutoff valve. Is wrong transformer configuration harness installed? Check incoming voltage and install correct configuration harness. Is the ground wire from Instant Electronic Ignition (IEI) board not connected to ground terminal? Connect ground wire to ground terminal. Is Instant Electronic Ignition (IEI) control in safety lockout? Reset IEI control by opening and closing loading door. (n- CE models only) Reset IEI by pressing reset button on back of unit. (CE models only) TMB1907S-b TMB1907S-B 20 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

23 Troubleshooting 7. Burner Does t Ignite (continued) Continued from previous page Is there an inoperative microprocessor or hybrid timer? Test and replace as needed. Is wrong transformer configuration harness installed? Check incoming voltage and install correct configuration harness. Is Instant Electronic Ignition (IEI) control in safety lockout? Reset IEI control by opening and closing loading door. (n- CE models only) Reset IEI by pressing reset button on back of unit. (CE models only) TMB1907S-c TMB1907S-C R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 21

24 Troubleshooting 8. Burner Ignites and Goes Out Repeatedly Burner Ignites and Goes Out Repeatedly Is there insufficient gas pressure? Check gas supply and pressure. Is there excessive igniter to burner clearance? Refer to Paragraph 43. Is the cabinet thermostat inoperative? Test thermostat and replace if inoperative. Is there inadequate make-up air? Refer to Installation Manual for make-up air requirements. Is the exhaust system improper or inadequate? Refer to Installation Manual for exhaust system requirements. Is the thermistor inoperative? Replace thermistor. Does tumble dryer have improper orifices? Tumble Dryer 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. Is the control heater relay malfunctioning? Replace control. Is there broken, loose or incorrect wiring? Refer to wiring diagram. Are the back draft dampers locked in close position? Repair damper to working order. TMB1908S TMB1908S 22 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

25 Troubleshooting 9. Burner Does t Shut Off Burner Does t Shut Off Are there impurities on gas valve seat, preventing valve from closing? Replace gas valve. Is wiring correct? Refer to wiring diagram. Is control heater relay malfunctioning? Replace control. TMB1909S TMB1909S R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 23

26 Troubleshooting 10. Clothes Do t Dry Clothes Do t Dry Is there enough heating time allocated for the load? Start cycle again with enough time to dry load. Does the burner ignite and go out repeatedly? Refer to Burner Ignites and Goes Out Repeatedly flowchart. Is the burner not igniting? Refer to Burner Does t Ignite flowchart. Is the drying selector improperly set? Set selector for higher setting. Is there too much water in articles being dried? Remove excess water. Is the voltage incorrect? Refer to Installation Manual for electrical requirements. Is the clothes load too large? Remove part of load. Maximum load is 30 pound dry weight (cotton load) for 30 pound Tumbler, etc. Is there inadequate make-up air? Is the exhaust duct to the outside blocked? Refer to Installation Manual for make-up air requirements. Clean duct to remove blockage. Is the exhaust system improper or inadequate? Refer to Installation Manual for exhaust system equirements. Continued on next page TMB2188S-a TMB2188S-A 24 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

27 Troubleshooting 10. Clothes Do t Dry (continued) Continued from previous page Is the lint screen clogged? Clean lint screen. Is the exhaust damper binding? Adjust damper so it turns freely. Is the thermistor inoperative? Replace thermistor. Is the cylinder speed too fast? Check belt is not riding on outer diameter of motor pulley. Is airflow switch bracket mounted improperly? Check for proper alignment: make sure locator pins are securely in place and tighten mounting screws. TMB2188S-B TMB2188S-b R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 25

28 Troubleshooting 11. Tumble Dryer Overheating Tumble Dryer Overheating Does tumble dryer have incorrect main burner orifices? Obtain and install correct orifices. Is the thermistor sensor inoperative? Check wiring to ensure thermistor is connected. Replace thermistor if necessary. Remove lint buildup on thermistor. Is gas pressure too high or low? Adjust gas pressure as specified on serial plate. Is the exhaust damper binding? Adjust damper so it turns freely. Is the make-up air inadequate? Refer to Installation Manual for make-up air requirements. Is the control heater relay malfunctioning? Replace control. Is there lint buildup? Is the exhaust system restricted or inadequate? Clean lint compartment. Check damper for lint accumulation. Check ductwork for lint buildup. Remove obstruction or lint build up from exhaust ductwork. Refer to Installation Manual for exhaust system requirements. Are the safety covers missing, allowing cool air to enter tumble dryer? Is the lint screen clogged with fabric softener? Are there holes in cabinets due to foreign objects? Replace covers. Replace lint screen. Repair/replace cabinet components. TMB1911S TMB1911S 26 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

29 Troubleshooting 12. Burner t Burning Properly Burner t Burning Properly Is there lint/dirt in burner tube? Disassemble burner and blow out lint/dirt. Is the airflow switch not functioning properly? Replace airflow switch. Is the gas pressure too high or low? Check serial plate on back of tumbler for correct gas pressure. Is there inadequate make-up air? Refer to Installation Manual for make-up air requirements. 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. Is there lint buildup around gas valve spud? Clean off lint. Is the exhaust duct restricted or blocked? Disassemble and clean exhaust system. TMB2189S TMB2189S R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 27

30 Troubleshooting 13. Loading Door Opens During Operation Loading Door Opens During Operation Is tumble dryer improperly leveled? Refer to Installation Manual for leveling leg adjustment. Is clothes load too large? Remove part of load and restart tumble dryer. Is loading door strike adjusted incorrectly? Refer to Adjustments Section for strike adjustment. TMB1913S 28 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

31 Troubleshooting 14. Cylinder Continues to Spin with Door Open Cylinder Continues To Spin With Door Open TE: All tumble dryer panels must be in place and on the machine for proper operation. Is relay inoperative? Replace relay in control box. TMB1914S R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 29

32 Troubleshooting 15. Coin Does t Fall into Coin Vault or Coin Drop Sensor Does t Register That Coin Has Been Entered Coin Does t Fall Into Coin Vault or Coin Drop Sensor Does t Register That Coin Has Been Entered Is proper electrical power supplied to coin drop? Incorrect electrical connection may prevent coins from registering in coin drop. Refer to wiring diagram. Is machine level? Is coin drop clean? 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. Residue or lint build-up may prevent coins from following through required check stages of drop. Clean coin drop. Is sensor operative? Replace coin drop sensor. 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. TMB1915S TMB1915S 30 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

33 Troubleshooting Troubleshooting Coin Drop If coin drop is not accepting coins, perform the following: 1. Clean coin drop. Refer to Paragraph On electronic coin drops with an old-style tension spring (shown in Figure 1 and Figure 3), test and replace tension spring using the following instructions. Remove Coin Drop From Machine 1. Disconnect electrical power to machine and drop. 2. Remove coin drop from machine. Test Tension Spring 1. Push coin return button to open and close coin drop cover to clear possible coin jams. Refer to Figure 1. Coin Return Button Coin Drop Cover Replace Tension Spring 1. Move tension spring downward until cover catch is free. Refer to Figure 3. Cover Catch Figure 3 Tension Spring DRY2088N DRY2088N 2. Open cover for coin drop. 3. Place a small flathead screwdriver under right side of tension spring and lift up. Refer to Figure 4. Small Flathead Screwdriver Tension Spring MIX7B MIX7B Figure 1 2. Manually hold down coin drop cover and insert coin. Refer to Figure 2. Left Tab Right Side of Tension Spring MIX2B MIX2B Figure 4 Coin Drop Cover 4. Use screwdriver to move spring approximately 3 mm to left. 5. Lift spring over left tab. Refer to Figure Rotate spring clockwise, 40 to 60 degrees, until it is free from right tabs. Refer to Figure 5. MIX6B MIX6B Figure 2 3. If coin drop now operates properly, replace tension spring using instructions on following pages. Tabs Center Tab MIX3B MIX3B Figure R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 31

34 Troubleshooting 7. Use screwdriver to remove spring from center tab. Refer to Figure Lift spring, with attached clip, off drop. 9. Remove clip from spring. Refer to Figure 6. Clip Figure Attach clip to new tension spring, Part. 209/ 00598/ Place clip, installed on spring, in slot on coin drop. Refer to Figure 7. MIX4B MIX4B 13. Lift spring gently to place in position under left tab. 14. Push spring to right until it snaps into position. Refer to Figure Close coin drop cover. 16. Move tension spring over cover catch. Refer to Figure 3. Reinstall Coin Drop Into Machine 1. Reinstall coin drop into machine. 2. Reconnect electrical power to machine and drop. 3. Add a coin to drop to verify that coin drop is operating properly and that electrical connection is working properly. Slot MIX8B MIX8B Figure Use a small flathead screwdriver to push spring under center tab. Refer to Figure 8. Center Tab Left Tab Small Flat Screwdriver MIX5B MIX5B Figure 8 32 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

35 Troubleshooting 16. Cylinder Is Stained Over time, the cylinder and cylinder backs of tumble dryers can become stained from various melted fabrics. These discolored areas can be removed by scrubbing the inside of the cylinder with cleaner and a cleaning pad, such as Scotch- Brite. IMPORTANT: Do not use a steel wool pad to clean the cylinder. Steel wool can damage your machine. Galvanized Cylinders For galvanized cylinders, use an all-purpose cleaner (such as 409 ) and a cleaning pad (such as Scotch- Brite ) to clean the inside of the cylinder. 1. Spray the cleaner on the discolored areas and let soak for a few minutes. 2. Using the pad, scrub the areas until the discoloration is removed. 3. Repeat steps 1-2 as necessary. 4. Thoroughly wipe the entire cylinder after cleaning to insure the cleaner has been removed. Stainless Steel Cylinders For stainless steel cylinders, use a heavy duty powder cleanser (such as Zud ) and a cleaning pad (such as Scotch- Brite ) to clean the inside of the cylinder. 1. Using a water spray bottle, wet the cylinder and cylinder back. 2. Sprinkle cleanser onto the pad and scrub the discolored areas. 3. Repeat steps 1-2 as necessary. 4. Thoroughly wipe the entire cylinder after cleaning to insure the cleanser has been removed R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 33

36 . Section 4 Adjustments WARNING To reduce the risk of electric shock, fire, explosion, serious injury or death: Disconnect electric power to the tumble dryer before servicing. Close gas shut-off valve to gas tumble dryer before servicing. Close steam valve to steam tumble dryer before servicing. Never start the tumble dryer with any guards/panels removed. Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumble dryer is properly grounded. W002R1 17. 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 9. a. Close door and start tumble dryer. 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. 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. 18. Loading Door Strike Refer to Figure 9. 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. ( kg) of pull is required to open door. If adjustment is needed, follow these steps: a. Open loading door. b. Loosen jamnut. c. Turn door strike screw in or out as required. d. Retighten jamnut. Loading Door Switch Actuator Jamnut Door Strike Screw T280SE3C DRY2088N Figure 9 34 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

37 Adjustments 19. Aligning Door Strike If the door acorn nut is breaking or the door catch is prematurely wearing (refer to Figure 9), a door adjustment may be necessary to align the two striking surfaces. a. Visually check door strike to catch position to determine if door is striking low or high. b. Make sure the door frame to the tumble dryer hinge mounting screws are secure. c. To adjust the strike position slightly, loosen both hinge hex bolts until the door frame can be moved. If the door is striking low, lift up on the door and while maintaining pressure tighten both hinge bolts. If the door is striking high, push down on the door and while maintaing pressure tighten both hinge bolts. Re-check strike position and repeat until position is correct. 20. Cleaning Coin Drop TE: The coin drop should be cleaned once a year. Clean the drop more often if it is exposed to high levels of residue or lint build-up. a. Disconnect electrical power to machine and drop. b. Remove coin drop from machine. c. Check the spring style of coin drop. Coin Drops with Old-Style Spring (refer to Figure 10): (1) Move spring downward until cover catch is free. Refer to Figure 10. TE: Do not lift or overbend the spring in any direction. (2) Open cover for coin drop. Refer to Figure 11. Figure 11 Coin Drops with New-Style Spring (refer to Figure 12): Cover DRY2089N Spring Spring Figure 12 (3) Open cover of coin drop. Refer to Figure 13. DRY2404N Catch DRY208 DRY2088N Figure R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 35

38 Adjustments TE: Do not overbend the spring by opening cover too far. Spring DRY2405N Figure 13 DRY2408N DRY2408N d. Clean the coin path with a soft brush and wipe exposed surfaces with an alcohol moistened cloth. Refer to Figure 14 or Figure 15. New-Style Spring Coin Drop Figure 15 DRY2405N e. Clean residue from coin rail with an alcohol moistened cloth. Refer to Figure 16. DRY2090N Alcohol Moistened Cloth DRY2406N Old-Style Spring Coin Drop Figure 16 DRY2090N Figure Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

39 Adjustments f. Clean light sensors with a soft brush or air spray duster. Refer to Figure 17. Light Sensors Figure 17 DRY2407N DRY2407N g. Close cover for coin drop. h. Coin Drops with OLD-Style Spring - Move spring back over cover catch. i. Reinstall coin drop into machine. j. Reconnect electrical power to machine and drop. k. Add a coin to drop to verify that coin drop is operating properly and that electrical connection is working properly R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 37

40 Section 5 Micro Display Control (MDC) Troubleshooting Models with BC, BG, 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 tumble dryer before servicing. Close gas shut-off valve to gas tumble dryer before servicing. Close steam valve to steam tumble dryer before servicing. Never start the tumble dryer with any guards/panels removed. Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the tumble dryer is properly grounded. W002R1 21. 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? Exit diagnostic testing and reset control. (Prompting for vend price) Is connector H2 on the control firmly seated in its receptacle? Reconnect and run diagnostic test again. Is the 3 pin connector between coin drop and control connected correctly? Reconnect and run diagnostic test again. Are wires exiting coin drop optical sensor cracked or broken? Replace coin drop or optic switch. Replace coin drop. If problem still exists then replace the electronic control. TMB1978S TMB1978S 38 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

41 Micro Display Control (MDC) Troubleshooting 22. Control Has Display (1) Gas, steam and electric heat. Single and three phase power supply. Control has no display (6) Is there voltage across H1-1 & H1-3 on the control? Replace electronic control. Is there voltage at the input of the secondary fuse? between secondary fuse and transformer. (7) Is there power supplied to the unit? Plug unit in and run it. Is there voltage at output side of secondary fuse? Replace secondary fuse. (2) Is there voltage at input of primary fuses? between primary fuse and power supply. between control and secondary fuse. (3) Is there voltage at output side of the primary fuses? Replace primary fuse(s). (4) Is there voltage across terminals 1 & 2 of transformer primary? between primary fuse and transformer. (5) Is there voltage across terminals 1 & 4 of transformer secondary? Replace transformer. TMB1979S Please see following page for wiring diagram information R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 39

42 Micro Display Control (MDC) Troubleshooting Control Has Display N SECONDARY FUSE MDL-3.5A 250V PRIMARY FUSE AGC-2A 250V DOOR SWITCH LINT DRAWER SWITCH CHASSIS GROUND WHT AIR FLOW SWITCH CABINET LIMIT THERMOSTAT TMB1977S RED RED BLK BLK LT. BLU TB1 L1 SERVICE CONNECTION WHT RED/BLU RED/WHT N.O. COM N.O. COM RED/BLK THERMISTOR BLK BRN/RED N.C. ORG/BRN COM N.O. RED/WHT RED/BLK WHT/VLT 3 4 SECONDARY FUSE 1.25 T 250V RED/BLK WHT/BLU WHT RED WHT H GRN/YEL RED RED 24Vac Ret L2 120V 24V 3.5A 24V 1.5A H2-2 H2-1 FS-2 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 H1-2 H1-4 24Vac 24Vac Ret H2-5 MDC CONTROL VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac K ohm 10 watt DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED CONTROL POWER SUPPLY MOTOR RELAY HEAT RELAY 4N25 24VAC H1-1 H1-3 H11L H TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY Door Sense Ret COIN DROPS H H OHM 1/4 watt H SEE VEND APPLICATION DETAIL 1 H2-6 H2-3 H2-4 FS-1 40 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

43 Micro Display Control (MDC) Troubleshooting 23. Door Open Indicator (1) Gas, steam and electric heat. Single and three phase power supply. Reference voltage checks to transformer neutral. (6) Is there voltage at H2-1 on the Electronic control? Replace control. Is there voltage at the input of the secondary fuse? between secondary fuse and transformer. (7) Is there power supplied to the unit? Plug unit in and run it. Is there voltage at output side of secondary fuse? Replace secondary fuse. (2) (8) Is there voltage at input of primary fuses? between primary fuses and power supply. Is there voltage at N.O. of door switch? between N.O. and output of secondary fuse. (3) (9) Is there voltage at output side of the primary fuses? Replace primary fuse(s). With door closed is there voltage to COM of door switch? Check for proper function of door switch replace if necessary. (4) (10) Is there voltage across terminals 1 & 2 of transformer primary? between primary fuses and transformer. Is there voltage at N.O. of lint drawer switch? between N.O. on lint drawer and COM on door switch. (5) (11) Is there voltage across terminals 2 & 3 of transformer secondary? Replace transformer. Is there voltage at COM of lint drawer switch with lint drawer closed? Check for proper operation replace if necessary. between H2-1 of electronic control and COM of lint drawer switch. TMB1980S TMB1980S Please see following page for wiring diagram information R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 41

44 Micro Display Control (MDC) Troubleshooting Door Open Indicator N SECONDARY FUSE MDL-3.5A 250V PRIMARY FUSE AGC-2A 250V DOOR SWITCH LINT DRAWER SWITCH CHASSIS GROUND WHT AIR FLOW SWITCH CABINET LIMIT THERMOSTAT TMB1981S TMB1981S RED RED BLK BLK LT. BLU TB1 L1 SERVICE CONNECTION WHT RED/BLU RED/WHT N.O. COM N.O. COM RED/BLK THERMISTOR BLK BRN/RED N.C. ORG/BRN COM N.O. RED/WHT RED/BLK WHT/VLT 3 4 SECONDARY FUSE 1.25 T 250V RED/BLK WHT/BLU WHT RED WHT H GRN/YEL RED RED 24Vac Ret L2 120V 24V 3.5A 24V 1.5A H2-2 H2-1 FS-2 MOTOR RELAY HEAT RELAY 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 H1-2 H1-4 24Vac 24Vac Ret H2-5 MDC CONTROL VOLTAGE CONFIGURATION INPUT JUMPER H2-2 TO H2-5 AS FOLLOWS: 24Vac - WIRE JUMPER 120Vac - 6.8K ohm 5 watt 240Vac K ohm 10 watt DOOR SENSING CIRCUIT ALLOWS CONTROL TO TURN ON MOTOR RELAY ONLY WHEN DOOR IS CLOSED & SWITCH IS PRESSED CONTROL POWER SUPPLY 4N25 24VAC H1-1 H1-3 H11L H TEMP. REGULATING CIRCUIT CONTROLS HEAT RELAY Door Sense Ret COIN DROPS H H OHM 1/4 watt H SEE VEND APPLICATION DETAIL 1 H2-6 H2-3 H2-4 FS-1 42 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6

45 Micro Display Control (MDC) Troubleshooting 24. Motor Will t Start/Run (1) te: test conducted with vend price satisfied and start button pressed. Gas, electric and steam heat. Single and three phase power supply. Is there voltage across H2-1 and H2-6 on the electronic control? Refer to Door Open Indicator flowchart. Replace MDC control. (6) (2) Is there voltage across terminals 1 & 4 of the fan motor? between fan motor and motor control relay. Is there voltage across H2-4 and H2-6 on the electronic control? Replace control. (3) Does the fan motor run? Replace fan motor. Is there voltage across the coil of the motor control relay? to coil of motor relay. 3 phase. Also see te on next page Is the unit equipped with single phase or three phase power? Is unit equipped with single phase or three phase power supply? Three phase. Also see te on next (12) page. Single phase Single phase (4) Is there supply voltage between L2 & L3 of motor control relay? between L2, L3 and supply. Is there voltage at terminal 5 of the motor control relay? between terminal 5 and power supply. (13) (5) Is there voltage across terminals L2 & T2 and L3 & T3? Replace motor control relay. Is there voltage at terminal 8 of motor control relay? Replace motor control relay. (7) (10) Is there voltage at terminal 6 of motor control relay? between terminal 6 of motor control relay and supply. Is there supply voltage to L1 and L2 of the motor control relay? between L1, L2 and power supply. (8) (11) Is there voltage at terminal 9 of motor control relay? Replace motor control relay. Is there votlage across L1 & T1 and L2 & T2? Replace motor control relay R6 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT 43

46 Micro Display Control (MDC) Troubleshooting 24. Motor Will t Start/Run (continued) (9) Is there voltage across terminals 1 & 4 of cylinder motor? between cylinder motor and motor control relay. between fan motor and motor control relay. Does the cylinder motor run? Replace cylinder motor. Replace fan motor. Motors are operational. Single phase Also n next te: 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. between L2, L3 and supply. Replace motor control relay. between terminal 6 of motor control relay and supply. Replace motor control relay. TMB1982S Please see following 2 pages for wiring diagram information. 44 Copyright, Alliance Laundry Systems LLC DO T COPY or TRANSMIT R6