Alliance Laundry Systems KE Series User manual

www.comlaundry.com Part No. 53294R1
June 2002
Service
Home Laundry
Dryers
KE and KG Models
Refer to Page 6 for Model Numbers

53294 1
© Copyright 2002, 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
Section 1 – Safety Information
Locating an Authorized Servicer ............................4
Section 2 – Introduction
Customer Service ....................................................5
Nameplate Location ................................................5
Model Identification ................................................6
How Your Dryer Works ..........................................7
Section 3 – Troubleshooting
1. Motor Does Not Run ........................................9
2. Motor Overload Protector Cycles Repeatedly .9
3. Motor Runs But Cylinder Does Not Turn .....10
4. Motor Does Not Stop ....................................10
5. Heating Element Does Not Heat or
Burner Does Not Ignite ..................................11
6. Igniter does not Glow (Gas Supply Sufficient)
- Gas Models ..................................................11
7. Burner ignites and goes Out Repeatedly
- Gas Models ..................................................11
8. Igniter Glows but Burner Does Not Ignite
- Gas Models ..................................................12
9. Heating Element or Burner Shuts Off
Prematurely ....................................................12
10. Heating Element or Burner Repeatedly Cycles
Off On Limit Thermostat ...............................13
11. Heating Element or Burner Does
Not Shut Off ...................................................13
12. Clothes Do Not Dry .......................................13
13. Timer Does Not Advance in
Automatic Cycle ............................................14
Section 4 – Service Procedures
14. Timer - All Models ........................................15
15. Temperature Selector Switch .........................15
To Test Temperature Selector Switch.............15
16. Signal Control ................................................15
To Test Signal Control....................................15
17. Start Switch - All Models ..............................15
To Test Push-To-Start Switch.........................15
To Test Timer Contacts...................................17
18. Control Panel .................................................18
19. Burner System Operation ...............................19
20. Ignition System Features ................................19
21. Burner System Components — Gas Models .20
To Test Gas Valve Coil Assembly..................20
To Test Electrical Circuit to Ignition System .22
To Test Igniter.................................................22
To Test Sensor ................................................23
22. Front Panel and Panel Seal ............................23
23. Burner Housing ..............................................24
24. Heat Shroud ...................................................24
25. Terminal Block or Power Cord ......................25
26. Loading Door .................................................25
27. Inner and Outer Door Panels And
Door Handle ...................................................25
28. Door Striker ...................................................26
29. Door Seal .......................................................26
30. Lint Filter .......................................................26
31. Striker Catch ..................................................27
32. Door Hinge ....................................................27
33. Hold-down Clips And Guide Lugs ................27
34. Door Switch ...................................................27
To Test Door Switch.......................................27
35. Cylinder Light ................................................27
36. Cylinder Light Receptacle .............................27
37. High or Low Thermostat ................................28
38. Limit Thermostat ...........................................28
39. Heating Element ............................................29
40. Cabinet Top ....................................................29
41. Control Hood .................................................29
42. Front Air Duct ................................................30
43. Exhaust Duct ..................................................30
44. Exhaust Fan Cover .........................................30
45. Motor and Exhaust Assembly ........................31
46. Impeller and Housing .....................................31
47. Motor .............................................................32
To Test Drive Motor .......................................33
48. Motor Pulley and Idler Pulley Assemblies ....34
49. Front Bulkhead Assembly .............................34
50. Cylinder Belt ..................................................35
51. Cylinder Assembly ........................................35
52. Rear Seal ........................................................36
53. Cylinder Rollers and Roller Shaft ..................36
54. Rear Bulkhead and Heater Box .....................36
55. Heat Shield .....................................................37
56. Rear Mounting Brackets ................................38
57. Cabinet and Base ...........................................39

253294
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Section 5 –Adjustments
58. Leveling Legs .................................................41
59. Burner Flame (Gas Models) ...........................41
Section 6 –Gas Burner Conversion Procedures
60. Conversion Kits –Glow Bar
Ignition System ..............................................43
61. Orifice Information ........................................43
62. Installation Instructions for 56412 and
56413 Gas Kits ...............................................43
Section 7 –Internal Wiring of Dryer Motor
Switch .....................................................................45

53294 3
© 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 the presence of a hazard that will cause severe personal injury, death, or substantial property
damage if the danger is ignored.
aWARNING
Warning indicates the presence of a hazard that can cause severe personal injury, death, or substantial property
damage if the warning is ignored.
aCAUTION
Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage if the
caution is ignored.
Additional precautionary statements (“IMPORTANT”and “NOTE”) are followed by specific instructions.
IMPORTANT
The word “IMPORTANT”is used to inform the reader of specific procedures where minor machine damage will
occur if the procedure is not followed.
NOTE
The word “NOTE”is used to communicate installation, operation, maintenance or servicing information that is
important but not hazard related.
In the interest of safety, some general precautions relating to the operation of this machine follow.
• 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
WARNING

453294
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 dryer.
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 electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
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 product, you must assume the
responsibility for any personal injury or property damage which may result. The manufacturer
will not be responsible for any injury or property damage arising from improper service and/or
service procedures.
W008
WARNING

53294 5
© 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.
DRY912P
Nameplate

653294
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Model Identification
Information in this manual is applicable to these dryer.
KE5003-1102
KE5003-4562
KG5009-1102

53294 7
Section 2 Introduction
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
How Your Dryer Works
The dryer uses heated air to dry loads of laundry. When the motor is started, the exhaust fan pulls room temperature
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.
CYLINDER
EXHAUST
FAN
GAS
VALVE
HEATER
DUCT
LINT
FILTER
AIR DUCT D282SE3A

53294 9
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Section 3
Troubleshooting
IMPORTANT: Refer to appropriate model wiring diagram for aid in testing dryer components.
1. MOTOR DOES NOT RUN
2. MOTOR OVERLOAD PROTECTOR CYCLES REPEATEDLY
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 or inoperative door switch. •Close door.
•Test switch and replace if inoperative.
Motor overload protector has cycled. •Wait two or three minutes for overload protector to reset.
If protector cycles repeatedly, refer to Paragraph 2.
Timer improperly set. •Reset timer.
Inoperative motor switch. •Test switch and replace if inoperative.
Start circuit not completed. •Press start switch button, or test switch and replace if
inoperative.
Inoperative motor. •Test motor and replace if inoperative.
Inoperative timer. •Test timer and replace if inoperative.
Broken, loose, or incorrect wiring. •Refer to appropriate wiring diagram.
POSSIBLE CAUSE TO CORRECT
Incorrect Voltage. •Refer to Installation Instructions (supplied with dryer)
for electrical requirements.
Clothes load too large. •Remove part of load. A normal washer load is a normal
dryer load.
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.
Inoperative motor overload protector. •Replace drive motor.

10 53294
Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
3. MOTOR RUNS BUT CYLINDER DOES NOT TURN
4. MOTOR DOES NOT STOP
POSSIBLE CAUSE TO CORRECT
Motor drive pulley loose. •Tighten setscrew. Refer to Figure 22.
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 or disconnected idler lever spring. •Replace or reconnect spring. Refer to Figure 22.
POSSIBLE CAUSE TO CORRECT
Incorrect wiring. •Refer to appropriate wiring diagram in SECTION 9.
Motor centrifugal switch sticky or plugged with
lint. •Remove dust or lint and spray with “SLYDE,”Part No. 131P4, to clean and lubricate.
Inoperative door switch. •Test switch and replace if inoperative.
Inoperative timer. •Test timer and replace if inoperative.

53294 11
Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
5. HEATING ELEMENT DOES NOT HEAT OR BURNER DOES NOT IGNITE
6. IGNITER DOES NOT GLOW (GAS SUPPLY SUFFICIENT) - GAS MODELS
7. BURNER IGNITES AND GOES OUT REPEATEDLY - GAS MODELS
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system. •Refer to Installation Instructions (supplied with dryer)
for exhaust requirements.
Blown house fuse or tripped circuit breaker. •Check fuses or circuit breakers.
Temperature selector switch set at FLUFF, or
inoperative. •Reset switch, or test switch and replace if inoperative.
Timer improperly set. •Reset timer.
Inoperative limit thermostat. •Test thermostat and replace if inoperative.
Electric Models: Inoperative heating element. •Replace element.
Gas Models: Insufficient gas supply. •Open partially closed gas shutoff valve, or correct low gas
pressure.
Inoperative drive motor switch. •Test switch and replace if inoperative.
Gas Models: Inoperative gas valve coils. •Test coils and replace if inoperative.
Gas Models: Inoperative igniter. •Test igniter and replace if inoperative.
Gas Models: Inoperative flame sensor. •Test flame sensor and replace if inoperative.
Inoperative high or low thermostat. •Test thermostat and replace if inoperative.
Inoperative timer. •Test timer and replace if inoperative.
Broken, loose or incorrect wiring. •Refer to appropriate wiring diagram.
POSSIBLE CAUSE TO CORRECT
No power to power leads on valve. •Check for electrical circuit. Refer to “To Test Electrical
Circuit to Ignition System”on page 22.
Flame sensor failed with contacts open. •Replace flame sensor.
Igniter broken or open. •Replace igniter.
POSSIBLE CAUSE TO CORRECT
Burner heat not holding flame sensor contacts open. •Replace flame sensor.
Insufficient gas supply. •Check gas supply and pressure.

12 53294
Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
8. IGNITER GLOWS BUT BURNER DOES NOT IGNITE - GAS MODELS
9. HEATING ELEMENT OR BURNER SHUTS OFF PREMATURELY
POSSIBLE CAUSE TO CORRECT
Flame sensor failed in closed position. •Replace flame sensor.
Open secondary coil or holding coil •Replace gas valve (in-warranty) or replace coils (out-of-
warranty) with Kit No. 56225A. Refer to the parts manual
for part numbers of coils.
Insufficient gas supply. •Check gas supply and pressure.
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system. •Refer to Installation Instructions (supplied with dryer)
for electrical requirements.
Gas Models: Insufficient gas supply. •Open partially closed gas shutoff valve, or correct low
pressure.
Gas Models: Dryer not properly equipped with
orifice for type of gas being used. •Refer to “Gas Burner Conversion Procedures”in this manual to convert burner.
Gas Models: Improperly adjusted burner flame. •Adjust flame. Paragraph 59.
Cycling off on limit thermostat. •Momentarily connect a jumper wire across thermostat
terminals. If heating element heats or burner ignites when
jumper wire is connected, refer to Paragraph 10.
Gas Models: Flame sensor contact opening
prematurely. Burner flame improperly adjusted. •Replace flame sensor or adjust burner flame.
Inoperative high or low thermostat. •Test thermostat and replace if inoperative.
Inoperative timer. •Test timer and replace if inoperative.
Broken, loose or incorrect wiring. •Refer to appropriate wiring diagram.

53294 13
Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
10. HEATING ELEMENT OR BURNER REPEATEDLY CYCLES OFF ON LIMIT THERMOSTAT
11. HEATING ELEMENT OR BURNER DOES NOT SHUT OFF
12. CLOTHES DO NOT DRY
POSSIBLE CAUSE TO CORRECT
External exhaust system longer than recommended. •Refer to Installation Instructions (supplied with dryer)
for exhaust system requirements.
Clogged lint filter. •Remove and clean lint filter.
Lint in internal dryer ductwork. •Disassemble dryer and clean ductwork.
Lint 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.
Air leak around loading door. (Door not sealing
properly against outer door seal due to damaged
seal or inoperative catch.)
•Replace seal or catch.
Air leak at front or rear cylinder seal. •Check and replace seal if necessary.
POSSIBLE CAUSE TO CORRECT
Inoperative motor switch. •Test switch and replace if inoperative.
Motor does not stop. •Refer to Paragraph 4.
Incorrect wiring. •Refer to appropriate wiring diagram.
POSSIBLE CAUSE TO CORRECT
Heating element does not heat or burner does not
ignite. •Refer to Paragraph 5.
Too much water in articles being dried. •Remove excess water.
Clothes load too large. •Remove part of load. A normal washer load is a normal
dryer load.
Improper or inadequate exhaust system. •Refer to Installation Instructions (supplied with dryer)
for exhaust requirements.
Heating element or burner shuts off prematurely. •Refer to Paragraph 9.
Gas Models: Gas line pressure too high or too low. •If line pressure to dryer exceeds 8 inch water column
pressure, or is lower than 4 inch water column, ask Gas
Company to correct.

14 53294
Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
13. TIMER DOES NOT ADVANCE IN AUTOMATIC CYCLE
POSSIBLE CAUSE TO CORRECT
Inoperative high or low thermostat. •Test thermostat and replace if inoperative.
Heating element does not heat or burner does not
ignite. •Refer to Paragraph 5.
Heating element or burner cycles off prematurely. •Refer to Paragraph 9.
Timer improperly set in FLUFF. •Reset timer.
Broken, loose or incorrect wiring. •Refer to appropriate wiring diagram.

53294 15
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Section 4
Service Procedures
14. TIMER - ALL MODELS
Refer to Figure 1 or 2for timer removal.
15. TEMPERATURE SELECTOR SWITCH
Refer to Figure 1 for switch removal.
16. SIGNAL CONTROL
Refer to Figure 1 for signal control removal.
17. START SWITCH - ALL MODELS
Refer to Figure 1 or 2for switch removal.
To Test Temperature Selector Switch
1. Remove control panel and lift assembly off
panel support. Refer to Figure 1 or 2.
2. Disconnect wires from switch.
NOTE: Refer to wiring diagram when rewiring
switch.
3. Set meter to read ohms and put meter probes on
L1 and 2. Meter should register “zero”in
HEAVY, NORMAL and PERMANENT
PRESS KNITS positions. Meter should read
“infinite”in DELICATE or FLUFF.
4. Apply meter probes to L1 and 1. Should get
“zero”reading in DELICATE and “infinite”in
all other positions.
5. Meter should read “infinite”on L1 and 1 or L1
and 2 in FLUFF positions.
To Test Signal Control
1. Remove control panel and lift assembly off
panel support. Refer to Figure 1 or 2.
2. Disconnect wires from signal control.
3. Set test meter to read ohms and apply probes to
terminals of Signal Control. Meter should read
approximately 1000 ohms at all times.
To Test Push-To-Start Switch
1. Remove control panel screws and lift assembly
off panel support. Refer to Figure 1 or 2.
2. Set voltohmeter on ohms scale and “zero”at
appropriate scale.
3. Unplug dryer from electrical supply and
disconnect wires from switch terminals.
4. Place ohmmeter probes on switch terminals.
You should see an “infinite”reading on the
meter.
5. With probes attached to switch, press the PUSH-
TO-START switch button. You should read “0”
(zero) ohms.

16 53294
Section 4 Service Procedures
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Figure 1
Figure 2
DRY842S
Lockwasher
Timer
Signal
Control
Temperature
Selector
Switch
Start
Switch Lockwasher Control
Panel
Attaching
Screw
Control
Hood
End
Timer
Attaching
Screw
Control
Panel
DRY1700S
Timer
Start
Switch
Lockwasher
Control
Panel
Attaching
Screw
Control
Hood
End
Timer
Attaching
Screw
Control
Panel

53294 17
Section 4 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
To Test Timer Contacts
Refer to Figure 3
All Models:
1. Remove panel screws and lift assembly off
panel support. Refer to Figure 1 or 2.
2. Disconnect wires from timer.
NOTE: Refer to appropriate wiring diagram
when rewiring timer.
3. Set meter to read ohms and put meter probes to
terminals:
a. L1 and M to test drive motor circuit.
b. L2 and H to test Heat Circuit.
c. L2 and T to test Timer Motor circuit.
d. B and P to test Buzzer circuit.
4. Starting with timer knob indicator in OFF
position at top of timer, slowly turn timer knob
clockwise until indicator is again pointing
toward OFF position at top of timer. Meter
should register “zero”reading when circuit
being tested is completed by timer.
NOTE: Refer to appropriate wiring diagram for
Timer Cycle Chart showing when circuit is made.
Figure 3
DRY840S
H
L2
T
N
L1
M
B
P

18 53294
Section 4 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
18. CONTROL PANEL
a. Remove control panel attaching screws and lift
assembly off panel support.
b. Remove left and right control hood ends.
c. Pull knob off timer shaft.
d. Pull knob off SIGNAL control, if present.
e. Pull knob off temperature selector switch, if
present, and remove knurled nut and
lockwasher holding switch in control panel.
NOTE: When reinstalling switch, lockwasher must
be between knurled nut and control panel for
grounding purposes.
f. Remove hex nut holding start switch and
lockwasher in control panel.
NOTE: When reinstalling switch, lockwasher must
be between switch and control panel for grounding
purposes.
g. Remove three screws holding timer in control
panel.
Figure 4
DRY839S
PRE-IGNITION CIRCUIT BURN CIRCUIT
Secondary
Valve Secondary Valve
Secondary
Coil Secondary Coil
Holding
Coil Holding Coil
Booster
Coil Booster Coil
Split-Coil
Valve
Gas Flow
Split-Coil
Valve
Gas Flow
120 V.120 V.
60 Hz.60 Hz.
Igniter
Sensor
Igniter
Sensor

53294 19
Section 4 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
19. BURNER SYSTEM OPERATION
Refer to Figure 4
a. Components
(1) This burner has four basic components:
(a.) A silicon carbide (glow bar) igniter
(b.) Burner tube
(c.) Sensor
(d.) Two-stage gas valve consisting of a
split-coil valve and a secondary coil
valve.
(2) The split-coil valve is opened when the
dryer thermostat calls for heat, while the
secondary valve does not open until the
igniter has attained ignition temperature.
b. Pre-Ignition Circuits
(1) When the dryer thermostat calls for heat,
circuits are completed through the holding
coil, sensor, booster coil and igniter.
(2) Both coils must be energized to open split-
coil valve.
(3) Once opened, the holding coil can hold the
valve open without assistance from the
booster coil.
(4) The current shunted around the secondary
coil by the sensor, passes through the
igniter causing it to get hot.
c. Burn Circuit
(1) In approximately 30 seconds, the igniter
attains ignition temperature and the sensor
(located on burner housing beside the
igniter) contacts will open.
(2) A circuit is then completed through the
secondary valve coil, opening the valve
and allowing gas to flow.
(3) Ignition is made and the heat from the
burner flame causes the sensor contacts to
remain open.
20. IGNITION SYSTEM FEATURES
Refer to Figure 4
a. Momentary Power Interruption
(1) Upon resumption of power, sensor
contacts will still be open, permitting
secondary valve to open.
(2) However, with the secondary coil in the
circuit, the booster coil cannot draw
enough current to open the split-coil valve.
(3) When sensor contacts do reclose, the
secondary valve will close, and the burner
system will be in the normal pre-ignition
circuit.
b. Flame Failure
(1) In case of flame failure, the sensor contacts
will reclose in about 45 seconds.
(2) This will close the secondary valve and the
burner system will be in the normal pre-
ignition circuit.
c. Ignition Failure
(1) If flame is not established as sensor
contacts open, secondary valve will remain
open until sensor contacts reclose.
(2) Sensor will continue to recycle the igniter
and secondary valve (about once per
minute) until ignition is made or dryer is
turned off.

20 53294
Section 4 Service Procedures
To reduce the risk of electric shock, fire, explosion, serious injury or death:
•Disconnect electric power to the dryer(s) before servicing.
•Close gas shut-off valve to gas dryer(s) before servicing.
•Never start the dryer(s) with any guards/panels removed.
•Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
21. BURNER SYSTEM COMPONENTS —
Gas Models
a. Complete Gas Valve Assembly.
(1) Remove access door by applying thumb
pressure to right edge of door. When door
opens move door to the left to disengage
from door supports. Refer to Figure 5.
(2) Close gas shut-off valve and disconnect
wires from sensor and at quick disconnect
blocks. Refer to Figure 7.
(3) Loosen union nut between gas shutoff
valve and nipple connector to gas valve.
Unthread nut from nipple completely.
Refer to Figure 7.
(4) Remove three hex head screws holding
valve and mounting bracket to base. Refer
to Figure 7.
(5) Lift gas valve and mounting bracket from
base and carefully remove through access
door opening.
NOTE: The holding coil, booster coil and secondary
coil can be replaced individually or in a kit. Refer to
the parts manual for the part numbers.
b. Burner Tube and Igniter
NOTE: Burner tube and igniter can be removed
without removing gas valve and bracket.
(1) Remove one screw from right side of
burner housing holding burner tube in
place. Refer to Figure 7.
(2) Gently move burner tube toward rear of
dryer to disengage tab from slot on left side
of burner housing. Refer to Figure 6.
(3) Carefully rotate burner tube and igniter
counterclockwise so tab is at 8 o’clock
position.
(4) Move air shutter end of burner tube slightly
to right and CAREFULLY remove burner
tube and igniter assembly out through front
of dryer.
IMPORTANT: Use care in removal so as not to
damage or break igniter as it is very fragile.
IMPORTANT: Handle igniter by grasping the
white ceramic portions only. DO NOT handle silicon
carbide portion of igniter with hands or allow any
oil, grease or other foreign material to contaminate
it. Oil, grease and other impurities or hairline
cracks will cause the igniter to burn out.
Figure 5
DRY846
Access
Door
Support
To Test Gas Valve Coil Assembly
Refer to Figure 6
This procedure can be performed on workbench
if gas valve, igniter, burner tube and burner
housing are removed from dryer.
1. Disconnect electrical service and close gas
shutoff valve.
2. Disconnect valve wire harness at molex plug.
3. Set test meter to read ohms and put meter probes
on BLUE and BLACK wire terminals on valve
harness side of molex plug.
4. Meter should read approximately 100 ohms
with the igniter (glow bar) in the circuit. If
reading goes to approximately 400 ohms,
replace the igniter.
5. If meter registers other than approximately 100
ohms as explained in step 4, one of the coils has
failed. Replace the coil assembly.