Alliance Laundry Systems LTS97A*N User manual

www.comlaundry.com
SWD441C
Part No. 801803
August 2004
Service
Homestyle
Stacked Washer/
Dryers
Refer to Page 3 for Model Numbers

801803 1
© Copyright 2004, Alliance Laundry Systems LLC
All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without
the expressed written consent of the publisher.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Table of Contents
Model Identification ................................................3
Section 1 – Safety Information
Locating an Authorized Servicer ............................6
Section 2 – Introduction
Customer Service ....................................................7
Nameplate Location ................................................7
How Your Stacked Washer/Dryer Works ...............8
Section 3 – Troubleshooting
1. Washer Motor Circuit ....................................11
Dryer
2. Dryer Motor Does Not Run ...........................13
3. Dryer Stops In Cycle; Quits After The First Few
Loads; Has A Burning Smell; Cycles On Motor
Thermal Protector .........................................14
4. Dryer Motor Runs But Cylinder
Does Not Turn ...............................................15
5. Dryer Motor Does Not Stop ..........................15
6. Dryer Runs Only When Door is Open ...........16
7. Dryer Heating Assembly Does Not Heat or
Burner Does Not Ignite .................................16
8. Igniter Does Not Glow (Gas Supply Sufficient)
– Gas Dryer Models .......................................17
9. Burner Ignites And Goes Out Repeatedly – Gas
Dryer Models .................................................17
10. Igniter Glows But Burner Does Not Ignite – Gas
Dryer Models .................................................17
11. Dryer Heater Assembly Or Burner Shuts Off
Prematurely ....................................................18
12. Dryer Heater Assembly or Burner Repeatedly
Cycles Off On Limit Thermostat ...................18
13. Dryer Heater Assembly or Burner Does Not
Shut Off ..........................................................19
14. Clothes Do Not Dry in Dryer .........................19
15. Timer Does Not Advance In
Automatic Cycle ............................................20
16. Clothes Are Too Hot When Removed From
Dryer ..............................................................21
17. Excessive Chattering Or Vibrating Noise in
Dryer ..............................................................21
18. Excessive Humming Or Whistling Noise in
Dryer ..............................................................21
Washer Control
19. Washer Error Code Listing ............................23
20. Washer Will Not Start – No LEDs/Lights lit
(No response to start switch) ..........................24
21. Washer Will Not Start – Door Open Error
(Wash/Rinse LEDs Flashing – Door must be
closed and attempting to lock) .......................26
22. Washer Will Not Start – No Door Lock
(Door LED Flashing) .....................................28
23. Washer Motor Will Not Run
(Door/Final Spin LEDs Flashing) ..................30
24. Washer Will Not Fill – No Communication
Error (Wash/Door LEDs Flashing) ................32
25. Washer Overflows .........................................34
26. Pump Does Not Operate ................................36
27. Serial Communication Error
(Final Spin/Rinse LEDs Flashing) .................38
Section 4 – Grounding
28. Wall Receptacle Polarity Check (Washer Power
Cord) ..............................................................41
29. Ground Wires From Power Cord To Rear
Bulkhead And From Rear Bulkhead To Control
Cabinet Check Wall Receptacle Polarity (Gas
Dryer Models Only) .......................................42
30. Ground Wire From Terminal Block To Rear
Bulkhead and From Rear Bulkhead To Control
Cabinet (Electric Dryer Models Only) ...........43
31. Washer Ground Connections .........................44
32. Dryer Ground Connections ............................46
Section 5 – Service Procedures
33. To Remove the Dryer .....................................49
34. Control Panel and Controls ............................50
35. Washer Control ..............................................52
36. Pressure Switch ..............................................53
37. Control Cabinet ..............................................53
38. Washer Lower Access Panel ..........................53
39. Inverter Control ..............................................54
40. Electric Drain Pump .......................................55
41. Washer Belt ....................................................56
42. Mixing Valve .................................................57
43. Washer Front Panel ........................................58
(continued)

2801803
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44. Washer Loading Door ....................................61
45. Washer Door Seal and Hose Assembly .........62
46. Washer Door Switch ......................................64
47. Washer Door Latch Switch ............................64
48. Washer Motor ................................................65
49. Outer Tub Front Panel ....................................67
50. Washer Inner Basket Pulley ...........................69
51. Washer Inner Basket Assembly .....................69
52. Bearing Housing ............................................75
53. Dryer Access Panel ........................................77
54. Cabinet Top ....................................................78
55. Lint Filter .......................................................79
56. Dryer Loading Door .......................................79
57. Dryer Inner and Outer Door Panels and Door
Pull .................................................................80
58. Dryer Door Strike ...........................................80
59. Dryer Door Seal .............................................81
60. Dryer Front Panel and Panel Seal ..................82
61. Dryer Door Switch .........................................82
62. Dryer Door Catch ...........................................82
63. Dryer Door Hinge ..........................................84
64. Dryer Hold-down Clips and Locators ............84
65. Burner System Components (Gas Models) ....85
66. Burner Housing and Heat Shroud
(Gas Models) ..................................................87
67. Limit Thermostat ............................................87
68. Heater Assembly (Electric Models) ...............88
69. ThermoStat .....................................................88
70. Air Duct ..........................................................88
71. Dryer Motor and Exhaust Assembly ..............89
72. Dryer Front Bulkhead Assembly ...................93
73. Cylinder Belt ..................................................95
74. Dryer Cylinder Assembly ..............................96
75. Dryer Rear Seal ..............................................97
76. Cylinder Rollers .............................................99
77. Outlet Cover ...................................................99
78. Rear Bulkhead and Heater Duct ...................100
79. Terminal Block or Power Cord ....................102
Section 6 – Adjustments
80. Cabinet Leveling Legs .................................105
81. Washer Loading Door ..................................106
82. Washer Motor Belt Tension .........................107
83. Washer Door Catch ......................................108
84. Shipping Braces ...........................................109
85. Burner Flame (Gas Models) .........................110
Section 7 – Dryer Test Procedures
86. Timer Contacts .............................................111
87. Fabric Selector Switch .................................112
88. Drive Motor .................................................113
89. Motor Switch ...............................................116
90. Burner System Operation .............................118
91. Electrical Circuit To Ignition System
(Gas Models) ................................................119
92. Gas Valve Coils Check (Gas Models) .........119
93. Sensor Check (Gas Models) .........................120
94. Igniter Check (Gas Models) .........................120
95. Thermal Fuse (Electric Models) ..................121
96. Heater Assembly (Electric Models) .............121
97. Cycling or Limit Thermostat .......................121
98. Door Switch .................................................122
Section 8 – Internal Wiring of Dryer Motor
Switch ...................................................................123

801803 3
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Model Identification
Information in this manual is applicable to these washers.
LTS97A*N LTU97A*N LTZ97A*N
LTS99A*N LTU99A*N LTZ99A*N
LTS99A*N1180
* Add Letter To Designate Color. W – White Q – Bisque

4801803
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Notes

801803 5
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
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.
aDANGER
Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.
aWARNING
Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death.
aCAUTION
Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property
damage.
Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions.
IMPORTANT
The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will
occur if the procedure is not followed.
NOTE
The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is
important but not hazard related.
In the interest of safety, some general precautions relating to the operation of this machine follow.
• Failure to install, maintain, and/or operate this machine 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 machine 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 machine is properly grounded and to reduce the risk of fire,
electric shock, serious injury, or death.
W284
WARNING

6801803
Section 1 Safety Information
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
NOTE: The WARNINGS and IMPORTANT INSTRUCTIONS appearing in this manual are not meant to
cover all possible conditions and situations that may occur. Common sense, caution and care must be
exercised when installing, maintaining or operating the machine.
Always contact your dealer, distributor, service agent or the manufacturer about any problems or conditions you do
not understand.
Locating an Authorized Servicer
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.
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
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
WARNING
If you or an unqualified person perform service on your machine, 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.
W286
WARNING

801803 7
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 2
Introduction
Customer Service
If literature or replacement parts are required, contact
the source from whom the machine was purchased or
contact Alliance Laundry Systems at [phone]
for the name and address of the nearest authorized
parts distributor.
For technical assistance, call [phone].
Nameplate Location
When calling or writing about your product, be sure to
mention model and serial numbers. Model and serial
numbers are located on nameplate(s) as shown.
SWD1134P
Nameplate

8801803
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
How Your Stacked Washer/Dryer Works
SWD666N
Pressure Switch
(Located inside
control cabinet)
Control
(Located inside
control cabinet)
Electric
Drain Pump Motor
Outer
Tub
Inner
Basket
Mixing
Valve
Exhaust Fan
Inverter Control
(Mounted to base
of washer)
Motor
Cylinder
Air Duct
Lint
Filter
Heating Element
(Electric Models)

801803 9
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
General (Dryer)
The dryer uses heated air to dry loads of laundry.
When the motor is started, the exhaust fan pulls fresh
air in through louvers at the rear of the dryer and over
the heat source (burner flame for gas and heating
element for electric). The heated air moves through the
heater duct and into the cylinder, where it circulates
through the wet load. The air then passes through the
lint filter, air duct and exhaust fan, where it is vented to
the outdoors.
General (Washer)
This frontload washer provides some of the same
principles of operation as the typical topload washers.
It senses water level, it dispenses the desired laundry
detergent, agitates the clothes for good cleaning
action, removes the water out of the washer and spins
the clothing in preparation for the dryer.
The difference in operation is primarily the rotational
washing agitation created for the horizontal basket and
drum. This agitation tumbles the clothes in a
clockwise, pause, and counter-clockwise direction.
This reversing tumbling action provides an efficient
washing process and requires less laundry detergent
and less water.
The cycle begins by pressing the start button, which
locks the loading door. The type of cycle and water
temperature are determined by the cycle select switch
and temperature selector switch.
The inner basket starts agitating during the wash water
fill. A column of air is trapped in a pressure bulb and
hose. The air pressure continues to increase as the
inner basket fills with water until it is great enough to
activate the pressure switch which then causes the
wash fill to stop.
The regular and perm press agitate cycles tumble the
clothing in a clockwise direction for a period of 15
seconds, pauses for nine seconds and then tumbles the
clothing in a counterclockwise direction for 15
seconds. This agitation continues until the wash soak
cycle. The machine stops agitating and turns on the
pump which removes the wash water.
Upon completion of the wash cycle, the machine goes
into two rinse cycles. Fresh cold water is brought into
the inner basket via the mixing valve until the pressure
switch shuts off the water while agitating. The rinse
cycle consists of agitation for a predetermined amount
of time then a spin mode with the pump running while
the machine goes into a series of 4 short 500 RPM
spins.
After all the rinse cycles have been completed, the
washer goes into a final high spin cycle to extract as
much water as possible from the clothing to prepare
them for the dryer. The spin speeds and duration of
this final high spin cycle are determined by the type of
wash cycle selected (refer to table).
NOTE: Washer may not reach 1000 RPM because
of an out-of-balance condition. Control may limit
speed to 850, 650 or 500 RPM depending on severity
of out-of-balance condition.
Technical (Washer)
The basic operational system of this washer consists of
the control, temperature switch, the inverter control,
pressure switch, water valves, electric pump, A.C.
motor and cycle select switch.
The control performs all timing functions like the
timer in a topload washer.
The inverter control uses a speed sensor on the motor
to measure the drum RPM. Before entering any spin
step the inverter control measures the RPM of motor to
sense out-of-balance. The inverter control will try to
redistribute the clothes if an out-of-balance condition
exists; the inverter control will limit the spin speed to
several speeds depending on the severity of the out-of-
balance condition. If the out-of-balance condition is
severe enough the inverter control will limit speed to
90 RPM and will not spin.
NOTE: An additional out-of-balance switch is used
to detect any out-of-balance condition during spins.
If this switch opens during a spin step, the inverter
control immediately stops and then restarts the
spin.
Regular Perm Press Delicate
650
RPM 3 minutes 4 minutes 4 minutes
1000
RPM 3 minutes 2 minute 0 minutes

10 801803
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Notes

801803 11
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 3
Troubleshooting
1. WASHER MOTOR CIRCUIT
Resistance Values:
Tachometer Circuit:
Terminals 4–5
Approx. 115 ohms
Windings:
Terminals 1–2, 2–3, 1-3
Approx. 4.5 ohms
Windings
Tach. Circuit
White
Grey
Red
Red Red
54321

12 801803
Section 3 Troubleshooting
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Notes

801803 13
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Troubleshooting
Dryer
IMPORTANT: Refer to wiring diagram for aid in testing dryer components.
2. DRYER MOTOR DOES NOT RUN
POSSIBLE CAUSE TO CORRECT
Electrical power off, fuse blown, or power cord not
plugged in. • Check laundry room for blown or loose fuse(s), or open circuit breaker(s). The dryer itself does not have an
electrical fuse.
• Check both fuses for electric models.
Loading door not closed. • Close door.
Inoperative door switch. • Test switch and replace if inoperative.
Timer improperly set. • Reset timer or try another cycle.
Inoperative timer. • Test timer and replace if inoperative.
Motor starting functions inoperative.
Does not start, or motor just hums. •RefertoParagraph 88 to check motor switch and motor windings.
Motor is dead, will not run. • Refer to Paragraph 88 to check motor switch, motor
windings, and main windings.
Motor overload protector has cycled. • Wait two or three minutes for overload protector to reset.
If protector cycles repeatedly, refer to Paragraph 3.
Motor centrifugal switch sticky or plugged with
lint. • Remove dust or lint and spray with a cleaner and lubricant.
Bind in motor bearing. • Remove belt and determine if motor shaft will spin.
• Replace motor if shaft is locked up.
Loose motor wire harness connection block. • Firmly press connection block onto motor switch.
Broken, loose, or incorrect wiring. • Refer to wiring diagram.
Power cord is miswired. • Refer to wiring diagram for the correct wiring.

14 801803
Section 3 Troubleshooting (Dryer)
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
3. DRYER STOPS IN CYCLE; QUITS AFTER THE FIRST FEW LOADS; HAS A BURNING SMELL;
CYCLES ON MOTOR THERMAL PROTECTOR
POSSIBLE CAUSE TO CORRECT
Incorrect Voltage. • Refer to nameplate in door well for correct voltage.
•RefertoInstallation Instructions (supplied with dryer)
for electrical requirements.
Clothes load too large. • Remove part of load. A normal washer load is a normal
dryer load. Maximum load: dryer cylinder one half full of
wet clothes.
Clothes cylinder is binding. • Check cylinder for binding and “out of round” condition.
• Check front and rear bulkheads for warping.
• Check support rollers for binding.
• Check cylinder seals and glides for wear or damage.
• Check for clothes lodged between cylinder baffle and
bulkhead.
Broken, loose or incorrect wiring. • Refer to wiring diagram.
Motor switch functions inoperative.
Short in motor winding. •RefertoParagraph 88 to check switch and windings.
Clothes item caught in fan. • Check fan for obstruction.

801803 15
Section 3 Troubleshooting (Dryer)
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
4. DRYER MOTOR RUNS BUT CYLINDER DOES NOT TURN
5. DRYER MOTOR DOES NOT STOP
POSSIBLE CAUSE TO CORRECT
Motor drive pulley loose. • Tighten pulley.
Belt not installed on pulley. • Install belt. Refer to Figure 43.
Broken cylinder belt. • Replace belt.
Clothes cylinder is binding. • Check cylinder for binding and “out of round” condition.
• Check front and rear bulkheads for warping.
• Check cylinder rollers for binding.
• Check cylinder seals and glides for wear or damage.
Broken, weak or disconnected idler lever spring. • Replace or reconnect spring. Refer to Figure 44.
Belt routed on wrong side of idler lever. • Reroute belt. Refer to Figure 43.
Oil on cylinder. • Wipe oil from cylinder.
Belt is “inside out.” • Reinstall belt with ribbed surface against cylinder.
Idler arm is binding. • Add grease between idler arm and motor mount.
• Replace idler arm and bolt if needed.
Dryer is overloaded. • Remove some laundry from dryer.
Wrong motor. • Refer to parts manual for correct motor part number.
Wrong belt used on dryer. • Check belt part number against correct part number in the
parts manual.
• Replace belt if needed.
Bent idler arm. • Replace idler arm.
POSSIBLE CAUSE TO CORRECT
Incorrect wiring to motor switch. • Refer to wiring diagram.
Motor centrifugal switch sticky or plugged with
lint. • Remove dust or lint and spray with a cleaner and lubricant.
Inoperative door switch. • Test switch and replace if inoperative.
Inoperative timer. • Test timer and replace if inoperative.

16 801803
Section 3 Troubleshooting (Dryer)
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
6. DRYER RUNS ONLY WHEN DOOR IS OPEN
7. DRYER HEATING ASSEMBLY DOES NOT HEAT OR BURNER DOES NOT IGNITE
POSSIBLE CAUSE TO CORRECT
Door switch miswired. • Rewire door switch. Refer to appropriate wiring diagram.
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system. • Refer to Installation Instructions (supplied with dryer)
for exhaust requirements.
Use of plastic or thin foil exhaust duct. • Replace with rigid or semi-rigid metal exhaust duct.
Blown house fuse or tripped circuit breaker. • Check fuses or circuit breakers.
Temperature selector switch set at FLUFF, or
inoperative. • Reset or test switch and replace if inoperative.
Timer improperly set (set in a cool-down period, or
a no heat cycle). • Reset timer. Try another cycle.
Inoperative limit thermostat. • Test thermostat and replace if inoperative.
Inoperative drive motor switch. • Test switch and replace if inoperative.
Electric Models: Inoperative heater assembly. • Test heater assembly and replace if cold Ohms do not read
between 9 and 10.5 Ohms.
Electric Models: Inoperative thermal fuse. • Test thermal fuse and replace if inoperative.
Gas Models: Insufficient gas supply. • Check gas shut-off valve in dryer and main gas line valve.
• Open partially closed gas shut-off valve, or correct low
gas pressure.
Gas Models: Inoperative gas valve coils. • Test coils and replace if inoperative. Refer to
Paragraph 92.
Gas Models: Inoperative sensor. • Test sensor and replace if inoperative. Refer to
Paragraph 65, step e.
Gas Models: Inoperative igniter. • Test igniter and replace if inoperative. Refer to
Paragraph 94.
Gas Models: Harness not properly connected to gas
controls. • Check harness connections to gas valve coils, sensor and main harness.
• Reconnect as required.
Gas Models: Restricted gas flow in gas orifice. • Clean out gas orifice.
Inoperative cycling thermostat. • Test thermostat and replace if inoperative.
Inoperative timer. • Test timer and replace if inoperative.
Broken, loose, or incorrect wiring. • Refer to wiring diagram.

801803 17
Section 3 Troubleshooting (Dryer)
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
8. IGNITER DOES NOT GLOW (Gas Supply Sufficient) – GAS DRYER MODELS
9. BURNER IGNITES AND GOES OUT REPEATEDLY – GAS DRYER MODELS
10. IGNITER GLOWS BUT BURNER DOES NOT IGNITE – GAS DRYER MODELS
POSSIBLE CAUSE TO CORRECT
No power to power leads on valve. • Check thermostats, motor switch, and wiring.
Sensor failed with contacts open. • Replace sensor.
Igniter broken or open. • Replace igniter.
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system. Weather
hood flapper restricted. •RefertoInstallation Instructions (supplied with dryer) for exhaust requirements.
Burner heat not holding sensor contacts open. • Replace sensor, or correct gas supply problem.
Insufficient gas supply. • Check gas supply and pressure.
• Make sure gas shut-off valve is turned on.
Cracked igniter. • Replace igniter and bracket.
Inoperative or intermittent gas valve coils. • Check coils and replace appropriate coils. Refer to
Paragraph 92.
POSSIBLE CAUSE TO CORRECT
Sensor failed in closed position. • Replace sensor.
Open secondary coil or holding coil. • Replace gas valve (in-warranty), or replace coils (out-of-
warranty). Refer to Paragraph 92.
Insufficient gas supply. • Check gas supply and pressure.
• Make sure gas shut-off valve is turned on.
Igniter and bracket installed improperly on burner
tube assembly. • Loosen screw and properly position igniter and bracket on burner tube assembly.
Sensor installed improperly on burner housing. • Loosen screw and properly position the sensor on the
burner housing.

18 801803
Section 3 Troubleshooting (Dryer)
To reduce the risk of electric shock, fire, explosion, serious injury or death:
• Disconnect all electric power to the machine and accessories before servicing.
• Close gas shut-off valve to gas dryer before servicing.
• Never start machine with any guards/panels removed.
• Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
• Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
11. DRYER HEATER ASSEMBLY OR BURNER SHUTS OFF PREMATURELY
12. DRYER HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT
THERMOSTAT
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system.
Weather hood flapper restricted. •RefertoInstallation Instructions (supplied with dryer) for exhaust requirements.
Gas Models: Insufficient gas supply. • Check main gas line shut-off valve.
• Open partially closed gas shut-off valve, or correct low
pressure.
Gas Models: Dryer not properly equipped for type
of gas used. • Refer to “Gas Burner Conversion Procedures” supplied in gas burner conversion kit.
Gas Models: Improperly adjusted burner flame. • Adjust flame. Refer to Paragraph 85.
Cycling off on limit thermostat. • Momentarily connect a jumper wire across thermostat
terminals. If heater element heats or burner ignites when
jumper wire is connected, refer to Paragraph 12.
Gas models: Sensor contact closing • Replace sensor (Paragraph 65, step e) or adjust burner
flame. Refer to Paragraph 85.
Inoperative cycling thermostat. • Test thermostat and replace if inoperative.
Inoperative timer. • Test timer and replace if inoperative.
Broken, loose, or incorrect wiring. • Refer to wiring diagram.
POSSIBLE CAUSE TO CORRECT
External exhaust system longer or providing greater
restriction than recommended. •RefertoInstallation Instructions (supplied with dryer) for exhaust system requirements.
Use of plastic or thin foil exhaust duct. • Replace with rigid or semi-rigid metal exhaust duct.
Clogged lint filter. • Clean lint filter.
Lint in internal dryer ductwork. • Disassemble dryer ductwork and clean.
Lint or other obstruction in external exhaust system. • Disassemble and clean exhaust system.
Hinged damper on exhaust system weather hood
not free to open. • Free hinged damper or replace weather hood.
Limit thermostat cycling at too low a temperature. • Replace thermostat. Refer to Paragraph 67.
Air leak around loading door. (Door not sealing due
to damaged seal or inoperative door catch.) • Replace seal or catch.
Air leak at blower seal. • Check and replace seal if necessary.
Air leak at cylinder seal(s). • Check and replace seal(s) if necessary.