Alliance Laundry Systems DCB50CE Service Manual Download Page 34

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M411429

Section 3 Troubleshooting

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

WARNING

38. CG OM MODELS: NO HEAT WITH CYCLE SELECTED, UNIT RUNNING AND CALLING FOR

HEAT
120 Volt/60 Hertz/1 Phase and 208-240 Volt/60 Hertz/1 Phase Nonreversing
460-480 Volt/60 Hertz/3 Phase and 208-240 Volt/60 Hertz/3 Phase Reversing and Nonreversing

Step Problem

If No, then

Is there voltage at H2-13? If yes, continue to next step.

Replace micro control.

Is there voltage at H2-6 of the micro control?
If yes, continue to next step.

Correct wiring between H2-5 and H2-13 on the micro
control.

Is there voltage at H2-5 of the micro control?
If yes, continue to next step.

Check for proper thermistor operation. Replace micro
control if necessary.

Is there voltage to input of the motor relay? If yes,
continue to next step.

Correct wiring between motor relay and micro.

Is there voltage to the output of the motor relay? If yes,
continue to next step for 1 phase units, or step 11 for 3
phase units.

Replace motor relay.

1 Phase Models: Is there voltage to terminal 3 of CR1?
If yes, continue to next step.

Correct wiring between CR1 and motor relay.

Is there voltage to terminal 5 of CR1? If yes, continue to
next step.

Continue with Step 8.

Is there voltage to terminal 3 of the motor? If yes,
continue to next step.

Replace motor.

Is there voltage across the coil of CR1? If yes, continue to
next step.

Correct wiring between CR1 and motor.

Does CR1 operate properly? If yes, continue with Step
13.

Replace CR1.

3 Phase Models: Is there voltage to the input of fan motor
switch? If yes, continue to next step.

Correct wiring to fan motor switch?

Is there voltage out from the fan motor switch? If yes,
continue to next step.

Replace fan motor.

Is there voltage to the input of the cabinet limit? If yes,
continue to next step.

Correct wiring between cabinet limit and CR1.

Is there voltage to the output of the cabinet limit? If yes,
continue to next step

Replace cabinet limit.

Is there voltage to COM terminal of the airflow switch?
If yes, continue to next step.

Correct wiring between airflow switch and cabinet limit.

Is there voltage to the N.O. terminal of the airflow switch?
If yes, continue to next step.

Check for proper operation and airflow. Replace airflow
switch if necessary.

Is there voltage to the input of the stove limit? If yes,
continue to next step.

Correct wiring between stove limit and airflow switch.

Is there voltage to the output of the stove limit? If yes,
continue to next step.

Check for proper airflow. Replace stove limit if necessary.

Is there voltage to terminal 2 of the ignition control?
If yes, continue to next step.

Correct wiring between ignition control and stove limit.

(continued)

Summary of Contents for DCB50CE

Page 1: ...www comlaundry com Part No M411429R1 July 2002 T012c T012C Service Drying Tumblers 50 Pound Capacity Refer to Page 5 for Model Numbers ...

Page 2: ...r Opens During Operation 20 20 Tumbler Runs But No Steam To Coils Steam Models 21 21 Water In Steam Line Steam Models 21 22 Tumbler Will Not Start Time on Drying Timer Door Closed 22 23 Motor Runs Time on Drying Timer But No Heat 23 24 No Spark to Pilot Burner 24 25 Spark to Pilot Burner No Pilot Flame 25 26 Spark To Pilot Burner Pilot Lights No Main Burner 26 27 Igniter Does Not Glow 27 28 Ignite...

Page 3: ...rator 64 69 Gas Valve 64 70 Operator 64 71 Reset Assembly 64 72 Gas Valve 66 73 Magnetic Operators 66 74 Gas Valve 66 75 Diode Logic Board 66 76 Main Coil 67 77 Igniter and Bracket 67 78 Sensor 67 79 Igniter 67 80 Ignition Control 67 81 Gas Valve 67 82 Main Coil 68 83 Burner Tube 68 84 Contactors and Terminal Block 68 85 Heater Element 69 86 Stove High Limit Thermostat 70 87 Cabinet High Limit The...

Page 4: ...w DANGER indicates the presence of a hazard that will cause severe personal injury death or substantial property damage if the danger is ignored DANGER WARNING indicates the presence of a hazard that can cause severe personal injury death or substantial property damage if the warning is ignored WARNING CAUTION indicates the presence of a hazard that will or can cause minor personal injury or prope...

Page 5: ...esulting 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 To reduce the risk of electric shock fire explosion serio...

Page 6: ...CB50CG JCB50EG JT37CG JT37CGI JT37EG JT37EGI JT50CG JT50CGI JT50EG JT50EGI JTB50CG JTB50EG SC50CG SC50EG SCB50CG SCB50EG ST37CG ST37CGI ST37EG ST37EGI ST50CGI ST50EGI STB50CG STB50EG TKD50CGMT DCB50CSH DTB50CSH DTB50CSL JC50CSH JCB50CSH JT37CSH JT37CSL JT50CSH JT50CSL JTB50CSH JTB50CSL SC50CSH SCB50CSH ST37CSH ST37CSL ST50CSH ST50CSL STB50CSH STB50CSL DCB50CE DTB50CE JC50CE JCB50CE JT37CE JT50CE J...

Page 7: ...from whom the machine was purchased or contact Alliance Laundry Systems at 920 748 3950 for the name and address of the nearest authorized parts distributor For technical assistance call 920 748 3121 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 ...

Page 8: ... Servicing Tumblers 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 tumbler 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...

Page 9: ...ake 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 laundry by the tumbling action of the cylinder The air then passes through the lint filter exhaust fan and is vented to the outdoors NOTE In Energy Saver Models some of the exhaust air is recirculated Refer to page 9 Fresh Air C...

Page 10: ...M411429 9 Section 2 Introduction Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT T007CE1A Fresh Air Combustion Air Mixed Air Recirculating Air Exhaust Air Energy Saver Models ...

Page 11: ...switch and replace if inoperative Door switch improperly adjusted Refer to Adjustment Section in this manual for door switch adjustment Trunnion shaft assembly binding in trunnion housing bearings Replace trunnion housing bearings Start circuit not completed Press start switch or test switch and replace if inoperative Idler shaft binding in idler housing bearings Replace bearings Inoperative motor...

Page 12: ...ent Inadequate wiring Check with an electrician to ensure that wiring is adequate Inadequate make up air Refer to Installation Manual supplied with tumbler for make up air requirements Poor housekeeping Clean lint accumulation on and around the motor Broken loose or incorrect wiring Refer to wiring diagram located on back of tumbler or in literature packet POSSIBLE CAUSE TO CORRECT Motor drive pul...

Page 13: ... thermostat and replace if inoperative Electric Models Inoperative heating elements or contactors Check heat contactors and elements Replace if necessary Gas Models Insufficient gas supply Open partially closed gas shut off valve or correct low gas pressure Check inlet pressure and compare to pressure specified on serial plate If pressure cannot be obtained contact gas supplier Gas Models Incorrec...

Page 14: ...inoperative Gas and Electric Models Inoperative high limit thermostat Test thermostat and replace if inoperative Gas and Electric Models Inoperative airflow switch Clean lint compartment after every eight hour shift Check back draft damper for foreign objects lint accumulation or other causes that may prevent damper from opening Check ductwork for lint build up Refer to Installation Manual supplie...

Page 15: ...gas specified on serial plate If pilot orifice is different from that specified on serial plate obtain and install correct orifice Clogged pilot gas filter Replace reset assembly Clogged pilot gas tube or pilot orifice Clean or replace tube or orifice Inoperative thermocouple Replace thermocouple Inoperative pilot assembly Replace pilot assembly POSSIBLE CAUSE TO CORRECT Improper or inadequate exh...

Page 16: ...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 Insufficient gas supply Open partially closed gas shut off valve or correct low gas pressure Improperly adjusted burner flame Refer to Adjustment Sec...

Page 17: ... SENSOR OPENS BUT NO IGNITION GAS MODELS White Rodgers Glow bar Ignition POSSIBLE CAUSE TO CORRECT Insufficient gas supply 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 1 4 inch gap between bottom of igniter and top of main burner No gas flow throug...

Page 18: ...r make up air Refer to Installation Manual supplied with tumbler for exhaust and make up air requirements Cycles on high limit thermostat Refer to Paragraph 14 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 proper orifices POSSIBLE CAUSE TO CORRECT Improper or inadequate exhaust and or...

Page 19: ...shift Lint in tumbler ducts Clean tumbler ducts Lint in external exhaust system Disassemble exhaust system and clean High limit thermostat cycling at too low a temperature Replace thermostat Lint door panel not closed properly Open lint door panel place lint door panel back on tumbler ensuring a tight fit then latch POSSIBLE CAUSE TO CORRECT Gas Models Impurities on gas valve seat preventing valve...

Page 20: ...for make up air requirements Lint accumulation Remove lint Restricted or inadequate exhaust system Remove obstruction or lint build up from exhaust ductwork Refer to the Installation Manual supplied with tumbler for exhaust system requirements Inoperative thermostat Replace thermostat POSSIBLE CAUSE TO CORRECT Burner air shutters incorrectly adjusted Refer to Adjustment Section for proper flame ad...

Page 21: ...21 WATER IN STEAM LINE STEAM MODELS POSSIBLE CAUSE TO CORRECT Valves closed Check all valves in supply and return lines make sure they are open Blocked steam trap Remove trap and clean Replace if inoperative Inoperative solenoid valve Check operation of solenoid valve Incorrect installation of check valve Check for inlet and outlet markings on check valve and invert if necessary Clogged strainer R...

Page 22: ... 1 REPLACE PUSH TO START SWITCH CHECK FOR BROKEN WIRE OR POOR CONNECTION AT HARNESS PLUG CHECK FOR LINE VOLTAGE INTO DOOR SWITCH CHECK FOR LINE VOLTAGE OUT OF DOOR SWITCH CHECK FOR LINE VOLTAGE AT TERMINAL 3 OF CONTROL RELAY CHECK FOR LINE VOLTAGE TO MOTOR CHECK FOR LINE VOLTAGE ACROSS COIL TERMINALS OF CONTROL RELAY HAS SWITCH ROD MECHANICALLY ACTUATED DOOR SWITCH CHECK FOR LINE VOLTAGE ON TERMIN...

Page 23: ...R INTO MAIN CONTROL THERMOSTAT NO POWER ON TERMINAL 6 OF CONTROL RELAY NO POWER ON TERMINAL 4 OF CONTROL RELAY NO REPLACE MAIN CONTROL THERMOSTAT LOOSE OR BROKEN WIRE TO MAIN CONTROL THERMOSTAT POWER ACROSS COIL TERMINALS OF CONTROL RELAY YES YES YES REPLACE CONTROL RELAY YES POWER ON RED WIRE FROM MOTOR POWER INTO AIRFLOW SWITCH POWER OUT OF AIRFLOW SWITCH POWER INTO CABINET HIGH LIMIT THERMOSTAT...

Page 24: ... Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 24 NO SPARK TO PILOT BURNER Electronic Pilot Ignition Models Only 24 VOLTS BETWEEN TERMINAL 2 AND GROUND ON ELECTRONIC PACKAGE YES NO HIGH TENSION CABLE SECURELY ATTACHED TO IGNITOR POST ARCING TO LEFT BURNER YES SHIFT LEFT BURNER FURTHER TO LEFT CRACKS IN CERAMIC INSULATOR ENCASING IGNITOR PROBE REPLACE PILOT AND ELECTRODE ASSEMBLY CHECK TUMBL...

Page 25: ...ed to ensure that the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 25 SPARK TO PILOT BURNER NO PILOT FLAME Electronic Pilot Ignition Models Only 24 VOLTS BETWEEN TERMINAL 1 AND GROUND ON ELECTRONIC PACKAGE YES NO GAS PRESENT AT PILOT BURNER Disconnect white wire from Terminal 3 and light manually YES REPLACE ELECTRONIC PACKAGE REMOVE BLAC...

Page 26: ...sure that the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 26 SPARK TO PILOT BURNER PILOT LIGHTS NO MAIN BURNER Electronic Pilot Ignition Models Only 24 VOLTS BETWEEN TERMINAL 3 AND GROUND ON ELECTRONIC PACKAGE YES NO REPLACE LEFT COIL Main Operator WIRE BETWEEN SENSOR AND TERMINAL 4 OF ELECTRONIC PACKAGE CONNECTED SECURELY SENSOR SECUREL...

Page 27: ...ols Glow Bar System 29 IGNITER GLOWS CYCLES OFF BUT BURNER DOES NOT IGNITE Johnson Controls Glow Bar System 120 VOLTS PRESENT BETWEEN BLACK WIRE AND GROUND ON MAIN THERMOSTAT YES NO CHECK HEAT CIRCUIT 120 VOLTS PRESENT BETWEEN RED AND WHITE WIRES OF IGNITER BRACKET 120 VOLTS PRESENT BETWEEN EACH OF THE PURPLE WIRES OF SENSOR AND GROUND YES NO REPLACE IGNITER NO REPLACE SENSOR REPLACE SENSOR 120 VO...

Page 28: ...ite Rodgers Glow Bar System 32 IGNITER GLOWS CYCLES OFF BUT BURNER DOES NOT IGNITE White Rodgers Glow Bar System 80 120 VOLTS PRESENT BETWEEN BLACK WIRE AND GROUND ON MAIN THERMOSTAT YES NO CHECK HEAT CIRCUIT 80 120 VOLTS PRESENT BETWEEN RED AND WHITE WIRES OF IGNITER BRACKET 80 120 VOLTS PRESENT BETWEEN EACH OF THE PURPLE WIRES OF SENSOR AND GROUND NO YES REPLACE IGNITER NO REPLACE DIODE LOGIC BO...

Page 29: ...ems LLC DO NOT COPY or TRANSMIT 33 IGNITER SPARKS NO MAIN BURNER IGNITION Instant Electronic Ignition IGNITER SPARKING NO YES GREEN WIRE FROM IEI CONTROL CONNECTED TO GROUND TERMINAL IEI CONTROL IN SAFETY LOCKOUT RESET BY OPENING AND CLOSING DOOR RESISTANCE OF HIGH VOLTAGE LEAD GREATER THAN 25 0000 OHMS OR LESS THAN 5 000 OHMS NO YES CONNECT GREEN WIRE TO GROUND TERMINAL IGNITER GAP IS NOT 5 32 IN...

Page 30: ...ntinue to next step Check for proper thermistor operation Replace micro control if necessary 4 Is there voltage to the input of the motor relay If yes continue to next step Correct wiring between motor relay and micro control 5 Is there voltage to the output of the motor relay If yes continue to next step for 1 phase units Step 11 for 3 phase units Replace motor relay 6 1 Phase Only Is there volta...

Page 31: ...dary If yes continue to next step Replace transformer 3 Is there voltage to the COM terminal of the door switch If yes continue to next step Correct wiring between door switch and transformer Check fuses 4 Is there voltage to the N O terminal of the door switch If yes continue to next step Check door switch for proper operation Replace if necessary 5 Is there voltage to terminal H2 8 on the micro ...

Page 32: ... Volt 60 Hertz 3 Phase CG and CSH Reversing Nonreversing 208 240 Volt 60 Hertz 3 Phase CE Reversing Nonreversing 460 480 Volt 60 Hertz 3 Phase CG CE and CSH Reversing Nonreversing Step Problem If No then 1 Is there voltage across the primary of the transformer If yes continue to next step Correct wiring between transformer and supply voltage Check fuses 2 Is there 24 VAC across terminals 1 4 of tr...

Page 33: ...yes continue to next step Correct wiring between motor switch and motor relay 7 Is there voltage at the output of the fan motor switch If yes continue to next step Replace fan motor 8 Is there voltage to the input of the cabinet limit If yes continue to next step Correct wiring between cabinet limit and fan motor 9 Is there voltage to the output of the cabinet limit If yes continue to next step Ch...

Page 34: ...Is there voltage to terminal 3 of CR1 If yes continue to next step Correct wiring between CR1 and motor relay 7 Is there voltage to terminal 5 of CR1 If yes continue to next step Continue with Step 8 8 Is there voltage to terminal 3 of the motor If yes continue to next step Replace motor 9 Is there voltage across the coil of CR1 If yes continue to next step Correct wiring between CR1 and motor 10 ...

Page 35: ...T WITH CYCLE SELECTED UNIT RUNNING AND CALLING FOR HEAT 120 Volt 60 Hertz 1 Phase and 208 240 Volt 60 Hertz 1 Phase Nonreversing 460 480 Volt 60 Hertz 3 Phase and 208 240 Volt 60 Hertz 3 Phase Reversing and Nonreversing continued Step Problem If No then 20 Does the igniter spark If yes continue to next step Check for proper gap on igniter and check for proper resistance of ignition cable Replace i...

Page 36: ...heck fuses 2 Is there 24 VAC across terminals 2 3 of the transformer secondary If yes continue to next step Replace transformer 3 Is there voltage to the COM of the door switch If yes continue to next step Correct wiring to door switch Check fuse 4 Is there voltage to the N O terminal of the door switch If yes continue to next step Check door switch and switch rod for proper operation Replace if n...

Page 37: ...he COM of the door switch If yes continue to next step Correct wiring between door switch and L1 supply for 208 240 Volt units Check between door switch and X1 of transformer for 480 Volt units 2 Is there 120 VAC to the N O terminal of the door switch If yes continue to next step Check for proper operation of door switch arm and or replace door switch 3 Is there 120 VAC to terminal P2 of the micro...

Page 38: ...otor contactor If yes continue to next step Correct wiring to the coil of motor contactor 6 Is there voltage to terminals L1 L2 and L3 of motor contactor If yes continue to next step Correct wiring between motor contactor terminals and L1 L2 L3 of TB1 7 Is there voltage at terminals T1 T2 and T3 of the M contactor If yes continue to next step Replace motor contactor 8 Is there voltage to terminals...

Page 39: ...flow switch If yes continue to next step Correct wiring between airflow switch and stove high limit 6 Is there voltage at COM of the airflow switch If yes continue to next step Check for proper airflow and function of airflow switch Replace airflow switch if necessary 7 Is there voltage to the input of the cabinet limit If yes continue to next step Correct wiring to between cabinet limit and airfl...

Page 40: ...itch if necessary 5 Is there voltage to the input of the stove limit If yes continue to next step Correct wiring between stove limit and airflow switch 6 Is there voltage to the output of the stove limit If yes continue to next step Check for proper airflow and flame pattern Replace stove high limit if necessary 7 Is there voltage to the input of the cabinet high limit If yes continue to next step...

Page 41: ...p 11 for reverse rotation Correct wiring between micro control and door switch 6 Forward Rotation Is there voltage to H2 3 of micro control If yes continue to next step Make sure unit is in the forward portion of rotation Replace micro control 7 Is there voltage across the coil of the forward relay If yes continue to next step Correct the wiring to the relay 8 Is there voltage to terminals L1 L2 a...

Page 42: ... Hertz 3 Phase units Step Problem If No then 1 Is there 120 VAC across COM and Neutral P3 terminals on PC board If yes replace PC board Correct wiring between TB1 L1 and COM on PC board or between TB1 N and P3 Neutral on PC board for low voltage Correct wiring between COM on PC board and X1 of transformer for 480 Volt 60 Hertz 3 Phase voltage Step Problem If No then 1 Is there voltage to the COM o...

Page 43: ...ls of the motor contactor If yes continue to next step Correct wiring to the coil of motor contactor 6 Is there voltage to terminals L1 L2 and L3 of motor contactor If yes continue to next step Correct wiring between motor contactor terminals and L1 L2 L3 of TB1 7 Is there voltage at terminals T1 T2 and T3 of the M contactor If yes continue to next step Replace motor contactor 8 Is there voltage t...

Page 44: ...o control 4 Is there 120 VAC to terminal P1 of the micro control If yes continue to next step for gas models step 9 for steam models Replace micro control 5 Gas Models Is there 120 VAC across the coils of the CR1 If yes continue to next step for gas models step 9 for steam models Correct wiring to the coil of CR1 6 Is there 120 VAC to terminal 1 on CR1 If yes continue to next step Correct wiring b...

Page 45: ... there voltage to the N O terminal of the door switch If yes continue to next step Check door switch for proper operation replace if necessary 5 Is there voltage to the input side of the Push To Start button If yes continue to next step Correct wiring between start switch and door switch 6 Is there voltage to the input side of the auxiliary contacts on the motor contactor If yes continue to next s...

Page 46: ... necessary 7 Is there voltage to the input of the stove limit If yes continue to next step Correct wiring between stove limit and airflow switch 8 Is there voltage to the output of the stove limit If yes continue to next step Check for blockage and proper airflow Replace stove limit if necessary 9 Is there voltage to the N C terminal of switch B If yes continue to next step Correct wiring between ...

Page 47: ... 7 Is there voltage to the output side of the stove high limit thermostat If yes continue to next step Check for proper operation and airflow Replace stove high limit if necessary 8 Is there voltage to the N C terminal of switch B on the coin drop If yes continue to next step Correct wiring between switch B and stove high limit 9 Is there voltage to the COM terminal of switch B If yes continue to ...

Page 48: ...if necessary 3 Is there voltage to COM terminal of the door switch If yes continue to next step Correct wiring between door switch and switch A of the rotary coin drop 4 With the door closed is there voltage to the N O terminal of the door switch If yes continue to next step Check door switch for proper operation replace if necessary 5 Is there voltage across the coil of the control relay CR If ye...

Page 49: ...s continue to next step Correct wiring between L1 on TBI and switch A 2 Is there voltage to COM terminal of switch A If yes continue to next step Check for proper operation of switch A Replace switch A if necessary 3 Is there voltage to COM terminal of the door switch If yes continue to next step Correct wiring between door switch and switch A of the rotary coin drop 4 With the door closed is ther...

Page 50: ... shock this tumbler MUST be electrically grounded in accordance with local codes or in the absence of local codes with the latest edition of the National Electrical Code ANSI NFPA No 70 In Canada the electrical connections are to be made in accordance with CSA C22 1 or the latest edition of the Canadian Electrical Code Part I and or local codes Electrical work should be done by a qualified electri...

Page 51: ... under panel b Manual Timer and Coin Meter Models 1 Remove two screws holding control panel to cabinet 2 Lift control panel off top edge of front panel and pull panel forward just far enough to disconnect wire harness at the plug 55 PUSH TO START SWITCH a Remove control panel b Remove two screws holding switch and mounting bracket if applicable to control panel Refer to Figure 1 c Disconnect wires...

Page 52: ...aundry Systems LLC DO NOT COPY or TRANSMIT Figure 1 SUPPORT ROD ACCESS PANEL CONTROL PANEL ATTACHING SCREWS PUSH TO START SWITCH SCREWS T056SE3D CONTROL PANEL BRACKET PUSH TO START SWITCH ASSEMBLY CONTROL PANEL BRACKETS WIRE HARNESS PLUG TERMINAL BOARD T057SE3A ...

Page 53: ...sconnect wires from relay NOTE Refer to wiring diagram when rewiring relay 58 RESISTOR Models with 208 240Volt 60Hertz Control Circuit a Remove control panel b Disconnect resistor leads Refer to Figure 3 NOTE Refer to wiring diagram when rewiring resistor 59 COOLING OR DRYING TIMER New Style a Remove control panel b Pull timer knob off timer shaft Refer to Figure 3 c Remove three screws holding ti...

Page 54: ...oling and drying timers used prior to January 1985 were supplied by Greenwald and have serviceable timer motors After January 1985 Robert Shaw or Mallory timers are used which do not have serviceable timer motors These later timers must be replaced as complete assemblies if the timer motor fails a Remove control panel b Disconnect motor leads c Remove screws holding timer motor to mounting bracket...

Page 55: ...res must be reconnected to ensure that the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 61 COIN METER Refer to Figure 5 a Remove control panel b Disconnect wires from heat and run switches c Cut remaining motor wire and joining white wire at wire nut d Remove four speed nuts holding coin meter to coin meter frame NOTE Refer to wiring diag...

Page 56: ... motor leads e Slide cam and drive fork out from under motor mounting bracket NOTE Refer to wiring diagram when rewiring timer motor 63 COIN METER RUN OR HEAT SWITCH Refer to Figure 7 a Remove control panel b Disconnect wires from switches on timer c Hold switches and actuating bracket under switches tightly together with one hand while removing two screws holding switches to timing motor mounting...

Page 57: ...et e Remove wire way attaching screws Refer to Figure 9 f Remove screws wire clips and or retaining straps securing thermostat sensing tube in wire way g Later Models Remove junction box cover attaching screws Refer to Figure 9 IMPORTANT When reinstalling thermostat be sure to install all screws and wire clips and replace all retaining straps removed in steps f and g h Unlock and remove lint panel...

Page 58: ...icing these ground wires must be reconnected to ensure that the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 65 TRANSFORMER Automatic Pilot Ignition Models Refer to Figure 11 a Remove control panel b Disconnect transformer wires at electronic package c Disconnect remaining wires from transformer at connectors NOTE Refer to wiring diagram ...

Page 59: ...M411429 61 Section 5 Service Procedures Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT Figure 11 TU015 SV TRANSFORMER WIRES NUT TRANSFORMER CONNECTORS ELECTRONIC PACKAGE ...

Page 60: ...res from gas valve terminals and disconnect gas valve union nuts d Disconnect igniter wire and sensor wire from electronic package e Disconnect pilot tube from gas valve IMPORTANT Purge air in the gas service line by operating the tumbler in drying mode Use pipe compound resistant to action of L P Gas on all pipe threads f Remove screws holding gas valve and bracket to stove assembly g Remove spud...

Page 61: ...nstant Electronic Ignition System IEI REDUNDANT COIL REDUNDANT COIL GAS VALVE BODY GAS VALVE BODY MAIN COIL MAIN COIL T002SE3A White Rodgers Glow Bar GAS VALVE BODY MAGNETIC OPERATORS Automatic Pilot System Johnson Controls Glow Bar GAS VALVE BODY PILOT OPERATOR MAIN OPERATOR Standing Pilot GAS VALVE BODY RESET ASSEMBLY OPERATOR ...

Page 62: ...rator to gas valve body Refer to Figure 13 69 GAS VALVE Standing Pilot Models Refer to Figure 14 a Remove control panel b Close gas shut off valve c Disconnect all wires from gas valve terminals and disconnect gas valve pipe unions d Disconnect thermocouple and pilot tube from gas valve IMPORTANT Purge air in the gas service line by operating the tumbler in drying mode Use pipe compound resistant ...

Page 63: ...TER BRACKET T019SE3B White Rodgers Glow Bar Ignition Burner T016SE1A GAS VALVE PILOT BURNER PILOT TUBE THERMOCOUPLE UNION NUTS SHUT OFF GAS VALVE Shown in the ON position Standing Pilot Burner Automatic Pilot Ignition Burner T017SE1A SENSING PROBE SENSOR WIRE UNION NUTS IGNITER WIRE GAS SHUT OFF VALVE Shown in the ON position GAS VALVE PILOT TUBE T021SE1A MANIFOLD NIPPLE GAS OFF GAS SHUT OFF VALVE...

Page 64: ...e control panel b Close gas shut off valve Refer to Figure 14 c Disconnect wires from magnetic operator terminals d Remove screws holding magnetic operators to gas valve body Refer to Figure 13 NOTE Refer to wiring diagram when rewiring magnetic operators 74 GAS VALVE White Rodgers Glow Bar Models Refer to Figure 14 a Remove control panel b Close gas shut off valve c Disconnect all wires from gas ...

Page 65: ...t c Remove screw holding igniter bracket to stove assembly d Disconnect igniter wires from diode logic board White Rodgers or relay Johnson Controls 78 SENSOR Glow bar Models a Remove control panel b Disconnect wires from sensor Refer to Figure 14 c Remove screw holding sensor to side of stove assembly NOTE Refer to wiring diagram when rewiring sensor 79 IGNITER Instant Electronic Ignition Models ...

Page 66: ...sembly e Remove screws holding burner tubes to stove frame and remove burner tubes IMPORTANT Make sure that spudholder and orifices are positioned such that gas will be injected directly down the center of the burner 84 CONTACTORS AND TERMINAL BLOCK Electric Models NOTE Contactors and terminal blocks are located in contactor box at the rear of the tumbler a Remove screw holding cover to contactor ...

Page 67: ...yright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 85 HEATER ELEMENT Electric Models Refer to Figure 16 NOTE Remove heater element from the rear of the tumbler a Remove two screws and lift hood assembly off heater housing b Remove nuts disconnect wires and buss bars from element terminals NOTE Refer to wiring diagram when rewiring element terminals c Remove screws attaching element to rea...

Page 68: ...ding cover to junction box or airflow switch box older models Remove cover Refer to Figure 17 c Disconnect stove high limit thermostat wires in wire way or in junction box d Remove conduit nut from BX cable on inside of wire way or junction box Refer to Figure 17 e Remove two screws holding thermostat and bracket to rear side of burner Refer to Figure 17 NOTE This will allow the conduit to follow ...

Page 69: ...tat d Remove two screws holding thermostat to vertical duct Non Energy Saver Gas Models Refer to Figure 19 a Disconnect electrical service to tumbler b Remove lint compartment door c Remove two screws holding thermostat mounting bracket to cylinder shroud d Remove two screws holding cover to mounting bracket e Disconnect two wires from thermostat f Remove two screws holding thermostat to mounting ...

Page 70: ...round wires must be reconnected to ensure that the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 88 HIGH LIMIT THERMOSTAT Electric Models a Unlock and open access door Remove cover b Disconnect wires from thermostat c Remove two screws holding thermostat to front of heater housing and remove thermostat Refer to Figure 20 NOTE Refer to wiri...

Page 71: ...x hoses from steam coils b Remove screws holding cover to top of steam heating unit and remove cover c Remove screws holding steam coils to coil frame d Remove steam coils by lifting straight up and out of tumbler IMPORTANT When removing or replacing steam coils be careful not to damage fins on steam coils 90 LOADING DOOR ASSEMBLY Refer to Figure 21 and Figure 22 a Open loading door b While suppor...

Page 72: ... from hinge bracket d Remove nuts and screws holding hinge to door frame Refer to Figure 23 92 LOADING DOOR HANDLE Refer to Figure 21 a Open loading door b Remove screws holding door handle to door frame 93 FRONT PANEL a Remove control panel b Unlock open and remove lint panel Set aside to prevent damage c Open loading door support door and remove upper hinge bolt holding door to hinge bracket Ref...

Page 73: ...rvice Procedures Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT Figure 24 T032SE3A FRONT PANEL ATTACHING SCREWS 13 FRONT PANEL ATTACHING SCREWS FRONT PANEL ATTACHING SCREWS SPEED NUTS NEWER MODELS OLDER MODELS ...

Page 74: ...the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT 94 LOADING DOOR SWITCH a Remove control panel b Disconnect wires from door switch c Remove two switch attaching screws and remove switch Refer to Figure 25 NOTE Refer to wiring diagram when rewiring door switch 95 LOADING DOOR SWITCH ROD Refer to Figure 26 a Remove front panel b Remove nut ...

Page 75: ...pending on the model the airflow switch will be found either on the rear of the stove assembly directly below the wire way or within the wire way on the rear of the tumbler a Remove wire way cover plate older models or airflow switch box cover newer models b Disconnect wires from switch Refer to Figure 28 NOTE Refer to wiring diagram when rewiring airflow switch c Remove screw s holding switch and...

Page 76: ...e 27 b Reinstall drive guard 99 DRIVE BELT Nonreversing Tumblers a Remove drive guard Remove four clips older models or two screws newer models holding belt guard assembly to motor bracket Refer to Figure 29 Remove belt guard b Remove chain c Loosen nut on idler housing attaching bolt Refer to Figure 30 Drop idler housing to bottom of slots d Remove lower bolt and nut from guide rail Refer to Figu...

Page 77: ... Loosen nut on idler housing attaching bolt and slide idler housing to top of slotted mounting holes in guide rails Refer to Figure 31 This will provide slack in drive chain for removal from sprockets c Adjust chain following installation Refer to Adjustments section 101 IDLER HOUSING ASSEMBLY Reversing Tumblers a Support drive guard and remove the screws holding it to the back panel of the tumble...

Page 78: ... Figure 31 Nonreversing tumblers only c Run chain off drive sprocket d Remove belt tension by loosening idler capscrews or bolt e While supporting idler housing remove the upper and lower bolts nuts and lockwashers holding guide rails to trunnion housing and motor bracket Refer to Figure 31 f Remove the sheave guide rails and idler housing as an assembly from the rear of the tumbler g Remove snap ...

Page 79: ...ey first then tighten the other setscrew 105 IDLER SHAFT Refer to Figure 32 a Remove idler housing assembly b Remove sheave and drive sprocket c Remove bolt holding idler housing to guide rails d Support idler housing assembly and carefully drive idler shaft from housing using a hammer and a hardwood dowel e Support idler housing assembly and remove drive bearings from housing using a hammer and a...

Page 80: ...hinge bolt holding door to hinge bracket d Remove door from hinge bracket e Unlock open and remove lint panel Set aside to prevent damage f Support front panel and remove screws and three speed nuts newer models only holding front panel to tumbler cabinet Refer to Figure 24 g Remove drive chain or belt h Remove cylinder sprocket and key i Pull cylinder out through front of cabinet NOTE When removi...

Page 81: ...ove four cap screws holding trunnion housing assembly to rear of cabinet Refer to Figure 31 d Remove four bearing retainer screws holding the small bearing in housing Refer to Figure 33 e Use a hammer and hardwood dowel to remove bearings IMPORTANT When installing new bearings apply a film of oil to the bearing cavity surfaces in the housing and to the outside diameter of the bearings IMPORTANT If...

Page 82: ...eed nuts newer models only holding front panel to tumbler cabinet Refer to Figure 24 g Remove drive chain h Remove cylinder sprocket and key i Pull cylinder out through front of cabinet NOTE When removing cylinder out through front of cabinet spread cabinet slightly so cylinder will clear cabinet sides j Remove the four washers and nuts holding trunnion shaft assembly to rear of cylinder IMPORTANT...

Page 83: ...OTE Refer to wiring diagram when rewiring motor b Remove chain or upper belt c Loosen nut on upper guide rail bolt Refer to Figure 30 d Loosen nut on idler housing attaching bolt and lower idler housing to bottom of slots This is to put slack in drive belt so it can be slipped off the motor pulley without risk of damage e Remove four clips or two screws holding belt guard to motor bracket and remo...

Page 84: ...sembly adjust belt then adjust chain Nonreversing models only 111 FAN AND MOTOR ASSEMBLY Reversing Tumblers a Disconnect wires from motor as follows Older models No quick disconnect wire harness 1 Remove cover plate from motor junction box and disconnect wires from motor wires Refer to Figure 35 2 Remove conduit nut from inside of motor junction box Pull wires from junction box Newer models Quick ...

Page 85: ...ires must be reconnected to ensure that the tumbler is properly grounded W002 WARNING Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT h Remove locknut and jam nut holding fan on motor shaft Refer to Figure 37 Pull fan off motor shaft NOTE Fan is keyed to motor shaft and may have to be removed using a puller Look for a spacer washer at the bottom of the fan keyway Take care to avoid ...

Page 86: ... and remove the screws holding it to the back panel of the tumbler Leave the belt guard attached to the top of the chain guard b Older Models Loosen four capscrews holding motor mounting bracket to side brackets Lower motor and mounting bracket until holding capscrews bottom in the mounting slots Refer to Figure 38 Newer Models Loosen locking bolt and back adjusting screw out to loosen belt Refer ...

Page 87: ...411429 89 Section 5 Service Procedures Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT Figure 38 SIDE BRACKET CYLINDER MOTOR MOTOR PULLEY BELT GUARD MOUNTING BRACKET SIDE BRACKET TU142 PT ...

Page 88: ...nd cover from control box 2 Disconnect wires from timer motor and switches or from solid state reversing timer NOTE Refer to wiring diagram when rewiring timer motor and switches 3 Remove two screws holding timer to back wall of control box 4 Models not having solid state reverser Remove timer motor and or switches as necessary for replacement If timer itself is faulty replace the complete assembl...

Page 89: ...C DO NOT COPY or TRANSMIT Figure 39 TMB1747S REVERSING TIMER ASSEMBLY TIMER MOTOR SWITCH CONTROL BOX COVER SCREW GROUND SCREW GROUND LUG TRANSFORMER 3 Phase Only COIL 240 Volt SCREW FAN CONTACTOR REVERSING CONTACTOR ASSEMBLY REVERSING CONTROL ASSEMBLY SOLID STATE REVERSING TIMER ...

Page 90: ...s recommended that the front of the tumbler be kept slightly higher than the rear approximately 1 8 inch 3 0 mm This will prevent the clothes while tumbling from wearing on the door glass gasket a Check the front to rear level by rotating the clothes cylinder until one of the cylinder ribs is at the bottom Place a level on the rib b Check the side to side level by placing a level on the front and ...

Page 91: ...ct air and gas mixture is indicated if the flame pattern is primarily blue with small yellow tips and bends to the right of the heater section Too little air is indicated if the flame is yellow lazy and smoky c To adjust the air inlet shutter loosen adjusting screws The control panel may have to be removed temporarily to loosen adjusting screw d Turn shutter to the right or left or in or out on ne...

Page 92: ...e lint panel is opened 1 1 2 inches 38 mm Adjust the airflow switch as follows a Load the tumbler with a 50 pound dry cotton load NOTE Airflow adjustment is much faster with one person opening lint panel in front and another adjusting the counterweight in the rear of tumbler b Start the tumbler Open the lint panel 1 1 2 inches 38 mm The airflow disc should move away from the cabinet opening the sw...

Page 93: ...y Systems LLC DO NOT COPY or TRANSMIT Figure 42 SWITCH ADJUSTING SCREWS SCREW AIRFLOW SWITCH REAR PANEL OF TUMBLER SWITCH LEVER VANE LEVER ARM DISC COUNTER WEIGHT SPRING CLIP DISC COUNTER WEIGHT SPRING CLIP SWITCH LEVER MOUNTING BRACKET AIRFLOW SWITCH TU050 SV ...

Page 94: ...ose door and start tumbler then slowly open loading door Cylinder and heat system should shut off when door is open two inches 51 mm plus or minus 1 4 inch 6 mm b Slowly close loading door When door is two inches 51 mm from being fully closed the tab on the door should contact the switch rod and depress it enough to close the switch with an audible click c If tab does not depress the switch rod en...

Page 95: ...ave and the idler Nonreversing Tumblers Belt and Chain Drive Models a Remove guard from rear of tumbler b Loosen idler housing bolts holding idler housing to the housing support c Position housing assembly by turning adjusting bolt until proper belt tension is reached then retighten idler housing bolts d Replace guard on rear of tumbler Reversing Tumblers a Remove guard from rear of tumbler b To a...

Page 96: ...ustments Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT Figure 45 T234IE3B POLY V BELT Self adjusting IDLER HOUSING ASSEMBLY DRIVE V BELT GUIDE RAILS IDLER HOUSING BOLTS 2 ADJUSTING BOLT NONREVERSING BELT DRIVE ...

Page 97: ...pyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT Figure 46 T322IE3A DRIVE BELT IDLER HOUSING ASSEMBLY CYLINDER BELTS IDLER HOUSING BOLTS 2 LOCKING BOLT ADJUSTING BOLT Not Shown ADJUSTING SCREW ADJUSTING NUT BELT BELT REVERSING ...

Page 98: ...tating the cylinder sprocket manually The chain must be at the high point when making the adjustment Refer to Figure 47 Nonreversing Tumblers a Remove drive guard Paragraph 98 b To adjust chain tension loosen jam nut holding idler sprocket to housing c Move idler sprocket left or right until proper chain tension is reached then retighten the jam nut d Check chain tension Reversing Tumblers a Remov...

Page 99: ...or TRANSMIT Figure 47 T201PE3A LOCKNUT ADJUSTING BOLT MOTOR PULLEY CYLINDER MOTOR IDLER HOUSING ATTACHING BOLT AND NUT IDLER HOUSING GUIDE RAIL SHEAVE GUIDE RAILS CYLINDER SPROCKET CYLINDER DRIVE CHAIN 1 2 INCH 13 mm DEFLECTION 1 2 INCH 13 mm DEFLECTION POLY V BELT BELT CHAIN REVERSING ...

Page 100: ...el a Open loading door and check the gap between the center of the front panel top flange and the cylinder rim Proper adjustment is when the gap is 7 16 inch 11 mm Refer to Figure 48 b Remove chain guard c Loosen the four trunnion housing bolts Refer to Figure 49 d Loosen the locknuts on the trunnion housing adjusting bolts Refer to Figure 49 e Turn the adjusting bolts in or out as necessary to ob...

Page 101: ...1429 Section 6 Adjustments Copyright Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT Figure 49 TU202 PT LOCKNUTS TRUNNION HOUSING ADJUSTING BOLTS TRUNNION HOUSING BOLTS 2 per side BELT CHAIN NONREVERSING ...

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