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Home Dryers
Refer to Page 6 for Model Numbers
D715I www.comlaundry.com
Part No. 512176R2
January 2012
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 – Dryer Troubleshooting
1. No Timer Advance In Automatic Cycles ................................. 8
2. Dryer Motor Does Not Run ...................................................... 10
3. Dryer Stops in Cycle; Quits After the First Few Loads;
Has a Burning Smell; Cycles On Motor Thermal
Protector ................................................................................... 12
4. Dryer Motor Runs But Cylinder Does Not Turn ...................... 13
5. Dryer Motor Does Not Stop .................................................... 14
6. Dryer Runs Only When Door is Open ..................................... 15
7. Dryer Heating Assembly Does Not Heat or Burner
Does Not Ignite ......................................................................... 16
8. Igniter Does Not Glow (Gas Supply Sufficient) –
Gas Dryer Models ..................................................................... 18
9. Burner Ignites and Goes Out Repeatedly –
Gas Dryer Models ..................................................................... 19
10. Igniter Glows But Burner Does Not Ignite –
Gas Dryer Models ..................................................................... 20
11. Dryer Heater Assembly or Burner Shuts Off Prematurely ....... 21
12. Dryer Heater Assembly or Burner Repeatedly Cycles
Off On Limit Thermostat .......................................................... 22
13. Dryer Heater Assembly or Burner Does Not Shut Off ............. 24
14. Clothes Do Not Dry in Dryer ................................................... 25
15. Timer Does Not Advance in Automatic Cycle ......................... 26
16. Clothes Are Too Hot When Removed From Dryer .................. 27
17. Excessive Chattering or Vibrating Noise in Dryer ................... 28
18. Excessive Humming or Whistling Noise in Dryer ................... 29
Section 4 – Adjustments
19. Leveling Legs ........................................................................... 30
20. Burner Flame (Gas Models) ..................................................... 31
Section 5 – Test Procedures
21. Timer Contacts ......................................................................... 32
22. Fabric Selector Switch .............................................................. 33
23. Drive Motor .............................................................................. 34
24. Motor Switch ............................................................................ 37
25. Burner System Operation ......................................................... 39
26. Electrical Circuit To Ignition System (Gas Models) ................ 40
© Copyright 2012 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.
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 1
27. Gas Valve Coils Check (Gas Models) ...................................... 40
28. Sensor Check (Gas Models) ..................................................... 41
29. Igniter Check (Gas Models) ..................................................... 41
30. Thermal Fuse (Electric Models) ............................................... 42
31. Heater Assembly (Electric Models) ......................................... 42
32. Cycling or Limit Thermostat .................................................... 42
33. Door Switch .............................................................................. 43
Section 6 – Internal Wiring of Dryer Motor Switch
2 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 1
Safety Information
Throughout this manual and on machine decals, you will find precautionary statements (“CAUTION,”
“WARNING” and “DANGER”) followed by specific instructions. These precautions are intended for the personal safety of the operator, user, servicer, and those maintaining the machine.
DANGER
Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.
WARNING
Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death.
CAUTION
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.
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 3
Section 1 Safety Information
WARNING
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
• 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
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
4
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
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.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
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 (920) 748-3950 for the name and address of the nearest authorized parts distributor.
For technical assistance, call (920) 748-3121.
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.
Nameplate
D412PE1A
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Section 2 Introduction
Model Identification
Information in this manual is applicable to these dryers:
ADE30RGS171TW01
ADE3LRGS171TW01
ADE41FSS171TN01
ADE4BFGS171TW01
ADE4BRGS171TW01
ADG30RGS111TW01
ADG3LRGS111TW01
ADG41FSS111TN01
ADG4BFGS111TW01
ADG4BRGS111TW01
AES17AWF
AES20AWF
AES28AWF
AES28AWF1500
AES68AWF
AES68AWF1500
AGS17AWF
AGS20AWF
AGS28AWF
AGS68AWF
ASE30FGW171TW01
ASG30FGW111TW01
CES68AWF
CES68AWF1500
CGS68AWF
KES18AWF
KES18AWF1500
KGS18AWF
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How Your Dryer Works
Lint
Filter
Section 2 Introduction
Cylinder
Heater
Duct Blower
Fan
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.
The dryer has an automatic drying feature. At cycle start, when fabric is wet and the temperature inside dryer is cool, the heat source (burner on gas models and heating element on electric models) is energized and heats the cylinder until operating temperature (as set on Fabric Selector) is reached. Power is not supplied to timer motor while heat source is energized during an automatic cycle. The heat source runs for longer periods of time in the beginning of the cycle, when it is working to reach the operating temperature, resulting in very little timer
advancement. As the fabric dries and the cylinder heat is maintained, the heat source is powered less, allowing the timer to advance to cycle end. If dryer heats but timer does not advance, refer to Paragraph 1.
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Section 3
Troubleshooting
WARNING
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
IMPORTANT: Refer to wiring diagram for aid in testing dryer components.
1. NO TIMER ADVANCE IN AUTOMATIC
CYCLES
For a description of Automatic drying feature, refer to
SECTION 2. If dryer heats but the timer does not advance, perform the following service procedures:
Electric Dryers
1. Remove any damp clothing from the dryer.
2. Set the timer to an Automatic cycle. Set fabric selector switch to Regular.
3. Remove the top 3 screws holding the control hood to the rear panel.
4. Start dryer by pushing in timer knob.
5. Using a volt/ohm meter set to AC voltage, measure the voltage across terminal “T” and
terminal “M” on timer. Refer to Figure 1.
6. Meter should read no voltage when the unit is first started and the dryer is still heating.
Continue to monitor these points until the heating element has shut off (this will take several minutes even with an empty load). When the heating element shuts off, meter should read 120
Volts and the timer motor should advance the cycle.
7. If meter does not read 120 Volts after the unit has reached proper operating temperature use meter to check for 120 AC Voltage between terminal
“A” and terminal “N” (neutral) on the timer.
8. If voltage is present, recheck voltage between
“T” and “M”.
9. If voltage is present, but timer does not advance, replace timer.
10. If meter does not read 120 Volts at “A” and “N”, check the wire connections at the heating element and timer (blue/black wire). If the connections are good, UNPLUG dryer, remove wire at terminal “A” on timer and perform an ohms check on wire continuity between the heating element and timer. If the wire shows continuity, replace timer.
8 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
“T”
“A”
L3
T
H
L2
L2
A
R
No. 270
S
N
M
P/B
L1 P/B
RSPC TM
MODEL 275BEF
MOD
60-1
KI
NGSTON
XXX VAC 3 WATT
“N”
“M”
DRY22B
Figure 1
Gas Dryers
1. Remove any damp clothing from the dryer.
2. Set the timer to an Automatic cycle. Set fabric selector switch to Regular.
3. Remove the top 3 screws holding the control hood to the rear panel.
4. Start dryer by pushing in timer knob.
5. Using a volt/ohm meter set to AC voltage, measure the voltage across terminal “T” and
terminal “N” on timer. Refer to Figure 1.
6. Meter should read no voltage when the unit is first started and the dryer is still heating.
Continue to monitor these points until the burner has shut off (this will take several minutes even with an empty load). When the burner shuts off, meter should read 120 Volts and the timer motor should advance the cycle.
7. If voltage is present, but the timer does not advance, replace timer.
8. If meter does not read voltage, check the wiring continuity using ohm scale on meter. UNPLUG dryer. Remove Red/Black striped wire from terminal “T” on timer and perform an ohms check between the timer wire and the cycling thermostat terminal, where the Red/Black stripe wire attaches on the cycling thermostat (located on the blower assembly). If the wire shows continuity, reattach the wire on terminal “T” of timer. Replace cycling thermostat and check for proper operation.
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Section 3 Troubleshooting
9
Section 3 Troubleshooting
2. DRYER MOTOR DOES NOT RUN
Dryer motor does not run.
Is power cord plugged in?
Yes
No
Plug in cord.
Is timer improperly set?
No
Yes
Reset timer or try another cycle.
Is timer inoperative?
Yes
Test timer and replace if inoperative.
No
Is electrical power off or fuse blown? Check laundry room for blown or loose fuse(s), or open circuit breaker(s). The dryer itself doesn't have an electrical fuse.
Yes
Turn power on or replace fuse. Check both fuses for electric models.
Are motor starting functions inoperative, does not start, or motor just hum?
Yes
Refer to
Adjustments section to check motor switch and motor windings.
10
No
Is loading door closed?
No
Close door.
Yes
Is door switch inoperative?
Yes
No
Test switch and replace if inoperative.
No
Is motor dead, won't run?
No
Continued on next page.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Yes
Refer to
Adjustments section to check motor switch, motor windings and main windings.
SWD1706S-a
SWD1706S-a
512176
512176
Continued from previous page.
DRYER MOTOR DOES NOT RUN (CONTINUED)
Section 3 Troubleshooting
Has motor overload protector cycled?
No
Yes
Wait two or three minutes for overload protector to reset. If protector cycles repeatedly, refer to next flowchart.
Is motor centrifugal switch sticky or plugged with lint?
Yes
Remove dust or lint and spray with a cleaner and lubricant.
No
Is there a bind in motor bearing?
No
Yes
Remove belt and determine if motor shaft will spin.
Replace motor if shaft is locked up.
Is motor wire harness connection block loose?
Yes
Firmly press connection block onto motor switch.
No
Is wiring broken, loose or incorrect?
No
Yes
Refer to wiring diagram.
Is power cord miswired?
Yes Refer to wiring diagram for correct wiring.
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Section 3 Troubleshooting
3. DRYER STOPS IN CYCLE; QUITS AFTER THE FIRST FEW LOADS; HAS A BURNING SMELL;
CYCLES ON MOTOR THERMAL PROTECTOR
Dryer stops in cycle, quits after first few loads, has burning smell or cycles on motor thermal protector.
12
Is voltage incorrect?
No
Is clothes load too large?
No
Yes
Yes
Refer to nameplate in door well for correct voltage. Refer to
Installation
Instructions (supplied with unit) for electrical requirements.
Remove part of load. A normal washer load is a normal dryer load.
Maximum load: dryer cylinder one half full of wet clothes.
Is clothes cylinder binding?
Yes
No
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.
Is there broken, loose or incorrect wiring?
Yes
Refer to wiring diagram.
No
Are motor switch functions inoperative?
Yes
Refer to
Adjustments section to check switch and windings.
No
Is there a short in motor winding?
Yes
Refer to
Adjustments section to check switch and windings.
No
Is a clothes item caught in fan?
Yes Check fan for obstruction.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1690S
SWD1690S
512176
Section 3 Troubleshooting
4. DRYER MOTOR RUNS BUT CYLINDER DOES NOT TURN
Dryer motor runs but cylinder does not turn.
Is motor drive pulley loose?
Yes
Tighten pulley.
Is belt "inside out" ?
Yes
Reinstall belt with ribbed surface against cylinder.
No
No
Is belt installed on pulley?
No
Install belt.
Yes
Is idler arm binding?
No
Yes
Add grease between idler arm and motor mount.
Replace idler arm and bolt if needed.
Is cylinder belt broken?
Yes
Replace belt.
No
Is clothes cylinder binding?
No
Yes
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.
Is dryer overloaded?
No
Is the wrong motor installed?
Yes Remove some laundry from dryer.
Yes
Refer to parts manual for correct motor part number.
No
Is idler lever spring broken, weak or disconnected?
No
Is belt routed on wrong side of idler lever?
Yes
Yes
Replace or reconnect spring.
Reroute belt.
Is the wrong belt installed?
No
Yes
Check belt part number against correct part number in parts manual and replace belt if needed.
Is idler arm bent?
Yes
Replace idler arm.
No
Is there oil on cylinder?
No
Yes
Wipe oil from cylinder.
SWD1691S
SWD1691S
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Section 3 Troubleshooting
5. DRYER MOTOR DOES NOT STOP
Dryer motor does not stop.
Is wiring to motor switch incorrect?
Yes
Refer to wiring diagram.
No
Is motor centrifugal switch sticky or plugged with lint?
Yes
Remove dust or lint and spray with a cleaner and lubricant.
No
Is door switch inoperative?
No
Yes Test switch and replace if inoperative.
Is timer inoperative?
Yes Test timer and replace if inoperative.
SWD1707S
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SWD1707S
512176
6. DRYER RUNS ONLY WHEN DOOR IS OPEN
Dryer runs only when door is open.
Is door switch miswired?
Yes
Rewire door switch. Refer to wiring diagram.
No
Replace door switch.
SWD1693S
Section 3 Troubleshooting
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1693S
15
Section 3 Troubleshooting
7. DRYER HEATING ASSEMBLY DOES NOT HEAT OR BURNER DOES NOT IGNITE
Dryer heating assembly does not heat or burner does not ignite.
Is exhaust system improper or inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
Is timer improperly set
(set in a cooldown period, or a no heat cycle)?
Yes
Reset timer. Try another cycle.
No
No
Is exhaust duct made of plastic or thin foil?
Yes
Replace with rigid or semirigid metal exhaust duct.
Is limit thermostat inoperative?
Yes
Test thermostat and replace if inoperative.
No
No
Is drive motor switch inoperative?
Yes
Test switch and replace if inoperative.
Is house fuse blown or circuit breaker tripped?
No
Yes
Check fuses or circuit breakers.
No
Electric Models:
Is heater assembly inoperative?
Yes
Test heater assembly and replace if cold
Ohms do not read between 9 and 10.5
Ohms.
Is temperature selector switch set at FLUFF, or inoperative?
Yes
Reset or test switch and replace if inoperative.
No
No
Electric
Models: Is thermal fuse inoperative?
Yes
Test thermal fuse and replace if inoperative.
16
No
Continued on next page.
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SWD1708S-a
SWD1708S-a
512176
512176
Section 3 Troubleshooting
DRYER HEATING ASSEMBLY DOES NOT HEAT OR BURNER DOES NOT IGNITE
(CONTINUED)
Continued from previous page.
Gas Models:
Is gas supply insufficient?
No
Yes
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: Is harness properly connected to gas controls?
Yes
No
Check harness connections to gas valve coils, sensor and main harness.
Reconnect as required.
Gas Models:
Is gas flow in gas orifice restricted?
Yes
Clean out gas orifice.
Gas Models:
Are gas valve coils inoperative?
Yes
Test coils and replace if inoperative.
Refer to
Dryer Test
Procedures section.
No
No
Is cycling thermostat inoperative?
Yes
Test thermostat and replace if inoperative.
Gas Models:
Is sensor inoperative?
Yes Test sensor and replace if inoperative.
No
No
Is timer inoperative?
Yes
Test timer and replace if inoperative.
Gas Models:
Is igniter inoperative?
No
Yes
Test igniter and replace if inoperative.
Refer to Dryer
Test
Procedures section.
No
Is wiring broken, loose or incorrect?
Yes
Refer to wiring diagram.
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SWD1708S-b
SWD1708S-b
17
Section 3 Troubleshooting
8. IGNITER DOES NOT GLOW (GAS SUPPLY SUFFICIENT) – GAS DRYER MODELS
Gas dryer models: Igniter does not glow (gas supply sufficient).
Is there power to power leads on valve (pink and blue wires)?
No
Check thermostats, motor switch and wiring.
Yes
Has flame sensor failed with contacts open?
Yes
Replace sensor.
No
Is igniter broken or open?
Yes
Replace igniter.
SWD1695S
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SWD1695S
512176
Section 3 Troubleshooting
9. BURNER IGNITES AND GOES OUT REPEATEDLY – GAS DRYER MODELS
Gas dryer models: Burner ignites and goes out repeatedly.
Is exhaust system improper or inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
No
Is weather hood flapper restricted?
Yes
No
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
Is igniter cracked?
Yes
Replace igniter and bracket.
No
Are gas valve coils inoperative or intermittent?
Yes
Check coils and replace appropriate coils.
Refer to Dryer
Test Procedures section.
Is burner heat holding sensor contacts open?
No Replace sensor or correct gas supply problem.
Yes
Is gas supply insufficient?
Yes
Check gas supply and pressure.
Make sure gas shut-off valve is turned on.
No
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1696S
SWD1696S
19
Section 3 Troubleshooting
10. IGNITER GLOWS BUT BURNER DOES NOT IGNITE – GAS DRYER MODELS
Gas dryer models: Igniter glows but burner does not ignite.
Is sensor improperly installed on burner housing?
Yes
Loosen screw and properly position the sensor on the burner housing.
Did sensor fail in closed position?
Yes
Replace sensor.
No
Is secondary coil or holding coil open?
Yes
Replace gas valve (in warranty) or replace coils
(out of warranty). Refer to Dryer Test
Procedures section.
No
Is gas supply insufficient?
Yes
Check gas supply and pressure. Make sure gas shutoff valve is turned on.
No
Are igniter and bracket improperly installed on burner tube assembly?
Yes
Loosen screw and properly position igniter and bracket on burner tube assembly.
No
20 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
11. DRYER HEATER ASSEMBLY OR BURNER SHUTS OFF PREMATURELY
Section 3 Troubleshooting
Dryer heater assembly or burner shuts off prematurely.
Is exhaust system improper or inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
No
Is weather hood flapper restricted?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
No
Gas Models: Is gas supply insufficient?
Yes
Check main gas line shut-off valve. Open partially closed gas shut-off valve or correct low pressure.
No
Gas Models: Is dryer properly equipped for type of gas used?
No
Refer to "Gas
Burner Conversion
Procedures" supplied in gas burner conversion kit.
Yes
Cycling off on limit thermostat?
No
Yes
Momentarily connect a jumper wire across thermostat terminals. If heater element heats or burner ignites when jumper wire is connected, refer to next flowchart.
Gas Models: Is sensor contact closing?
No
Is cycling thermostat inoperative?
Yes Test thermostat and replace if inoperative.
No
Yes
Replace sensor or adjust burner flame (refer to
Adjustments section).
Is timer inoperative?
Yes
Test timer and replace if inoperative.
No
Gas Models:
Is burner flame improperly adjusted?
Yes
Adjust flame.
Refer to
Adjustments section.
Is wiring broken, loose or incorrect?
Yes
Refer to wiring diagram.
No
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Section 3 Troubleshooting
12. DRYER HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT
THERMOSTAT
Dryer heater assembly or burner repeatedly cycles off on limit thermostat.
22
Is external exhaust system longer or providing greater restriction than recommended?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust system requirements.
Is there lint or other obstruction in external exhaust system?
Yes
Disassemble and clean exhaust system.
No
No
Is exhaust duct made of plastic or thin foil?
Yes
Replace with rigid or semi-rigid metal exhaust duct.
No
Is lint filter clogged?
Yes
No
Clean lint filter.
Is there lint in internal dryer ductwork?
No
Yes Disassemble dryer ductwork and clean.
Is hinged damper on exhaust system weather hood not free to open?
No
Is limit thermostat cycling at too low a temperature?
Yes
Yes
Free hinged damper or replace weather hood.
Replace thermostat.
No
Continued on next page.
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SWD1710S-a
SWD1710S-a
512176
Section 3 Troubleshooting
DRYER HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT
THERMOSTAT (CONTINUED)
Continued from previous page.
512176
Is there an air leak around loading door?
(Door not sealing due to damaged seal or inoperative door catch)?
Yes
Replace seal or catch.
No
Is there an air leak at blower seal?
Yes
Check and replace seal if necessary.
No
Is there an air leak at cylinder seal(s)?
Yes
Check and replace seal(s) if necessary.
No
Is there an air leak at front panel seal?
Yes
Check and replace seal if necessary.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1710S-b
SWD1710S-b
23
Section 3 Troubleshooting
13. DRYER HEATER ASSEMBLY OR BURNER DOES NOT SHUT OFF
Dryer heater assembly or burner does not shut off.
Is motor switch inoperative?
(Must be in a heat setting.)
Yes
Test switch and replace if inoperative.
No
Motor does not stop?
Yes Refer to Dryer
Motor Does Not
Stop paragraph.
No
Is wiring incorrect?
Yes
No
Refer to wiring diagram.
Has heater assembly shorted?
Yes
Remove heater assembly and check for short.
SWD1700S
24 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1700S
512176
Section 3 Troubleshooting
14. CLOTHES DO NOT DRY IN DRYER
Clothes do not dry in dryer.
512176
Does heater assembly not heat or burner not ignite?
No
Yes
Refer to Dryer
Heating
Assembly Does
Not Heat or
Burner Does
Not Ignite paragraph.
Is there too much water in articles being dried?
Yes
Remove excess water.
No
Is laundry load too large?
No
Is laundry load too small?
No
Yes
Remove part of load. A normal washer load is a normal dryer load. Maximum load: Dryer cylinder one half full of wet clothes.
Yes Add one or two bath towels to load.
Is there excessive lint on lint filter?
Yes
No
Clean lint filter.
Is heat selector switch or timer inoperative?
No
Yes
Test and replace switch or timer if inoperative.
Is exhaust system improper or inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
No
Does heater assembly or burner shut off prematurely?
Yes
Refer to Dryer
Heater
Assembly or
Burner Shuts
Off Prematurely paragraph.
No
Gas Models:
Is gas line pressure too high or too low?
Yes
If Natural Gas line pressure to dryer exceeds 8 inch water column pressure, or is lower than 4 inch water column, ask Gas
Company to correct.
No
Is belt installed improperly
(low RPM)?
Yes
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
Check for proper installation.
25
Section 3 Troubleshooting
15. TIMER DOES NOT ADVANCE IN AUTOMATIC CYCLE
Timer does not advance in automatic cycle.
Is large load drying?
Is cycling thermostat inoperative?
Yes
Test thermostat and replace if inoperative.
No
Yes
Timer will not advance until the load is almost dry.
26
No Is wiring broken, loose or incorrect?
Yes
Refer to wiring diagram.
Electric
Models: Is resistor inoperative?
Yes
Test resistor and replace if inoperative.
No
Heater assembly does not heat or burner does not ignite?
Yes
Refer to Dryer
Heating
Assembly Does
Not Heat or
Burner Does
Not Ignite paragraph.
No
Heater assembly or burner cycles off prematurely?
Yes
Refer to Dryer
Heater
Assembly or
Burner Shuts
Off Prematurely paragraph.
No
Is exhaust system improper or inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
No
No
Is timer motor inoperative?
No
Are seals inoperative
(air leaks)?
Yes
Select a drying cycle and activate start switch. Rotate timer knob until signal sounds.
Release timer knob. Signal should stop within ten minutes. If not, replace timer.
Yes
Check and replace any inoperative seals in the following areas:
1. Seal between loading door and front panel.
2. Seal between front panel and front bulkhead.
3. Seal between blower cover and air duct.
4. Seal between cylinder and front or rear bulkhead.
5. Gap between air duct and filter mounting.
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 3 Troubleshooting
16. CLOTHES ARE TOO HOT WHEN REMOVED FROM DRYER
Clothes are too hot when removed from dryer.
Is exhaust system improper or inadequate?
Yes
Refer to
Installation
Instructions
(supplied with unit) for exhaust requirements.
No
Are seals inoperative
(air leaks)?
Yes
Were clothes removed from dryer before cycle has completed?
Yes
Allow the dryer to complete the cycle through the cool-down to the
OFF position.
Check and replace any inoperative seals in the following areas:
1. Seal between loading door and front panel.
2. Seal between front panel and front bulkhead.
3. Seal between blower cover and air duct.
4. Seal between cylinder and front or rear bulkhead.
5. Gap between air duct and filter mounting.
No
Is cycling thermostat inoperative?
Yes
Test cycling thermostat and replace if inoperative.
No
512176
Is timer inoperative
(not allowing cool-down)?
Yes
Test timer and replace if inoperative.
No
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1713S
SWD1713S
27
Section 3 Troubleshooting
17. EXCESSIVE CHATTERING OR VIBRATING NOISE IN DRYER
Excessive chattering or vibrating noise in dryer.
Is idler spring inoperative?
Yes
Remove lower access panel. Set dryer to normal cycle and allow it to heat to operating temperature.
If the belt vibrates as it rotates around the cylinder, the idler arm is making the noise. Replace the idler spring.
No
Check blower fan for missing or cracked fan blades.
SWD1703S
28 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1703S
512176
18. EXCESSIVE HUMMING OR WHISTLING NOISE IN DRYER
Excessive humming or whistling noise in dryer.
Section 3 Troubleshooting
Is blower housing inoperative?
Yes
If the abnormal operating noise is loudest at the vent exit, the problem is originating from the blower housing. Replace the current housing and cover.
No
Check blower fan for missing or cracked fan blades.
SWD1704S
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
SWD1704S
29
Section 4
Adjustments
WARNING
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
IMPORTANT: When reference is made to directions (right or left) in this manual, it is from operator’s position facing front of washer.
19. LEVELING LEGS
NOTE: Dryer should be installed on a solid and level floor. a. Place dryer in position, adjusting the legs until dryer is level.
WARNING
To reduce the risk of serious injury or death by carbon monoxide and other gases in gas dryers, carefully read and follow all instructions given in this section.
W005
NOTE: Legs can be adjusted outside the dryer by using a 1-1/4 inch size wrench, or from inside the dryer (with lower front access panel removed) by using a 1/4 inch drive ratchet with extension.
b. Keep dryer as close to the floor as possible. All four legs must rest firmly on the floor so weight of the dryer is evenly distributed. The dryer
MUST NOT rock.
IMPORTANT: DO NOT move the dryer at any time unless the dryer is completely assembled. DO
NOT slide the dryer across the floor once the leveling legs have been extended as the legs and base could become damaged
Dryer
Base
30
Leveling
Leg
Figure 2
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
D351S
512176
Section 4 Adjustments
WARNING
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
20. BURNER FLAME (Gas Models) a. While supporting the access panel, remove two screws from bottom edge of access panel.
b. Gently lower the access panel to disengage locators from bottom edge of front panel.
c. Set timer to 60 minutes.
d. Close the loading door. Start the dryer in a heat setting (refer to Operating Instructions supplied with the dryer). The dryer will start, the igniter will glow red, and the main burner will ignite.
e. Allow the dryer to operate for approximately five minutes, then loosen the air shutter
f. Turn the air shutter to the left to get a luminous yellow tipped flame, then turn it back slowly to the right to obtain a steady blue flame.
g. After proper flame is obtained, tighten air
shutter lockscrew firmly. Refer to Figure 3.
h. Reinstall access panel and screws.
WARNING
To reduce the risk of fire or serious injury, the access panel must be in place during normal operation.
W262
NOTE: After the dryer has operated for approximately three minutes, exhaust air or exhaust pipe should be warm.
SHUT-OFF
VALVE
HANDLE
AIR SHUTTER
LOCKSCREW
512176
1/8" PIPE PLUG
(For checking manifold pressure)
Figure 3
AIR
SHUTTER
D265SE3A
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 31
Section 5
Test Procedures
WARNING
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
IMPORTANT: Electrical test procedures in this service manual are performed by using a Volt-Ohm meter. Tests can also be performed using a multimeter or any other electrical testing equipment with which the service person is familiar.
21. TIMER CONTACTS
a. Disconnect wires from timer, except timer motor wires.
NOTE: Refer to appropriate wiring diagram when rewiring timer.
b. Manually rotate timer out of “OFF” position and into cycle.
c. Set test meter to read Ohms. The following readings should be found:
(1) Motor circuit test –
L1 and M = “zero” Ohms (closed)
(2) Heat circuit test –
L2 and H = “zero” Ohms (closed)
(3) Timer motor test –
T and M (electric models) or T and N (gas models) = approximately 2462-2714 Ohms or apply live power to timer motor terminals and motor should run.
NOTE: Timer Motor Resistance:
120 Volt, 60 Hz
240 Volt
24 Volt
2,462 – 2,714 Ohms
10,900 – 13,300 Ohms
108 – 132 Ohms
(4) Rotate timer to “cooldown” (5 minutes before “OFF”). “Infinite” (open) reading should be found between L2 and H.
(5) Rotate timer to “OFF” position. “Infinite”
(open) reading should be found between L1 and M and between L2 and H.
NOTE: Timer motor power is supplied through M
(electric models) or N (gas models) terminal.
32 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 5 Test Procedures
WARNING
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
“H”
“L2”
No. 270
L3
T
H
L2
L2
R
A
N
S
RSPC TM
MODEL 275BEF
MOD
60-1
KI
NGSTON
XXX VAC 3 WATT
M
P/B
L1 P/B
“M”
“L1”
“H”
“L2”
L3
T
H
L2
L2
A
R
No. 270
S
N
M
P/B
L1 P/B
RSPC
TM
MODEL 275BEF
MOD
60-1
KI
NGSTON
XXX VAC 3 WATT
“M”
“L1”
Timer Motor
Wires
ELECTRIC MODELS
DRY1827S
Timer Motor
Wires
GAS MODELS
DRY1826S
22. FABRIC SELECTOR SWITCH
NOTE: Refer to proper model wiring diagram when rewiring switch.
a. Set test meter to read Ohms and apply meter probes to switch terminals.
NOTE: Refer to proper model wiring diagram when reconnecting wires.
Figure 4
FABRIC SELECTOR SWITCH – 4 Position
No Heat
Delicate
Perm. Press
Regular
X indicates closed
L1-1
–
X
–
–
L1-2
–
X
X
X
FABRIC SELECTOR SWITCH – 3 Position
No Heat
Delicate
Perm. Press/Regular
X indicates closed
L1-2
–
X
X
L1-3
X
–
–
L1-1
–
X
–
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 33
Section 5 Test Procedures
WARNING
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
23. DRIVE MOTOR
a. Remove motor and exhaust assembly. b. Disconnect motor wire harness at motor disconnect block.
MOTOR
DISCONNECT
BLOCK
NOTE: Refer to wiring schematic, Section 6, for internal motor switch wires.
NOTE: Drive Motor Resistance
120 Volt
240 Volt
2,460 – 3,100 Ohms
10,000 - 13,000 Ohms
2
6
4
3
5
1
MOTOR
SWITCH
2
6
4
3
5
1
G
MOTOR AND
EXHAUST
ASSEMBLY
DRIVE
MOTOR
Figure 5
D326SE3A
34 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 5 Test Procedures
WARNING
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 c. Motor Switch (Refer to SECTION 6 for Internal Wiring of the Dryer Motor Switch.)
WARNING
Disconnect electric power to dryer before performing any of the following steps or when replacing inoperative motor switch.
W290
Unplug the motor wire harness from the motor connection block before starting this test.
Start Terminals
Note: Disconnect terminal 5 wire (yellow or copper) from motor switch before testing start terminals.
Run Terminals
Note: Reconnect terminal 5 wire (yellow or copper) to motor switch before testing run terminals.
Heater Circuit Terminals
A. Continuity exists between switch terminal 5 and terminal 3 (black or copper wire).
YES
B. Manually depress actuator.
Continuity broken between switch terminal 5 and terminal 3 (black or copper wire).
YES
C. Continuity broken between switch terminal 6 and terminal 5 (yellow or copper wire).
YES
D. Manually depress actuator.
Continuity exists between switch terminal 6 and terminal 5 (yellow or copper wire).
YES
E. Continuity broken between switch terminal 1 and switch terminal 2.
YES
F. Manually depress actuator.
Continuity exists between switch terminal 1 and switch terminal 2.
YES
Motor switch checks O.K.
NO
NO
NO
NO
NO
NO
Inoperative start switch. Replace switch.
Inoperative start switch. Replace switch.
Inoperative start switch. Replace switch.
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 35
Section 5 Test Procedures
WARNING
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 d. Motor Windings (Refer to SECTION 6 for Internal Wiring of the Dryer Motor Switch.)
WARNING
Disconnect electric power to dryer before performing any of the following steps or when replacing inoperative motor switch.
W290
Start Winding
Run Main Winding
Protector
G. 1 – 2 Ohms between terminal
3 wire and orange or copper wire on the back of switch.
YES
H. 1 – 2 Ohms between terminal 5 wire and orange or copper wire on the back of switch wire.
YES
I. Continuity exists between orange or copper wire on back of switch and brown or blue wire in terminal 4.
YES
All motor windings check O.K.
NO
NO
NO
Inoperative start winding.
Replace motor.
Inoperative run main winding. Replace motor.
Inoperative protector.
Replace motor.
36 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 5 Test Procedures
WARNING
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
24. MOTOR SWITCH a. Remove motor and exhaust fan assembly. b. Remove the two motor switch attaching screws.
Refer to Figure 6. Disconnect switch leads.
Remove motor switch.
c. Remove thermal overload protector.
NOTE: The thermal overload protector is unique to the motor from which it was removed and should only be used on that motor. To reduce the risk of overheating the motor, do not use any thermal overload protector other than the one taken from the inoperative motor switch in step 3.
(1) Motor with Switch on Blower End
Using a small bladed screwdriver, press the thermal overload protector mounting tab downward and remove the thermal overload protector from the inoperative
motor switch. Refer to Figure 6.
Thermal
Overload
Protector
Mounting
Tab
Motor
Switch
Figure 6
D029KE3A
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 37
Section 5 Test Procedures
WARNING
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
(2) Motor with switch on pulley end
Press the tip of a small bladed screwdriver into the slot located between top of motor switch and plastic clip. Lift up on handle of screwdriver until both clip and thermal overload protector detach from motor
d. Attach the thermal overload protector removed in Step “c” to the new motor switch.
e. Install new motor switch onto motor and reconnect motor switch leads removed in Step
f. Test motor switch by following the step-by-
step procedures included in Paragraph 23.
g. Before reinstalling the motor assembly, apply power (120 VAC) directly to motor terminals 4 and 5. Then start and run the motor at least 6 times, making sure the motor and switch are operating properly.
NOTE: The dryer manufacturer and parts suppliers are not liable for improper switch installation.
Thermal
Overload
Protector
Plastic
Clip
Top Of
Motor
Switch
Figure 7
Motor
Switch
D359SE3A
38 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 5 Test Procedures
WARNING
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
4 5
120 VOLT, 60 HERTZ
ELECTRICAL
SUPPLY LINE
SECONDARY
COIL
1 2 3
HOLDING COIL
AND
BOOSTER COIL
(SPLIT COIL VALVE)
SECONDARY
COIL
HOLDING
COIL
BOOSTER
COIL
SENSOR
IGNITOR
D268SE3A
D267SE3B
Figure 8
25. BURNER SYSTEM OPERATION
(Gas Models – Refer to Figure 8.)
a. Components
This burner has four basic components: a silicon carbide (glow bar) igniter, burner tube, sensor, and a two-stage gas valve consisting of a split-coil valve and a secondary coil valve.
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
When the dryer thermostat calls for heat, circuits are completed through the holding coil, sensor, booster coil and igniter. Both coils must be energized to open the split-coil valve. Once opened, the holding coil can hold the valve open without assistance from the booster coil.
The sensor triggers the current to travel around the secondary coil and through the igniter, causing the igniter to get hot.
c. Burner Circuit
In approximately 30 seconds, the igniter attains ignition temperature and ignition is made. The heat from the burner flame causes the sensor contacts (located on burner housing beside the igniter) to open. A circuit is then completed through the secondary valve coil, opening the valve and allowing gas to flow.
d. Momentary Power Interruption
Upon resumption of power, sensor contacts will still be open, permitting secondary valve to open. However, with the secondary coil in the circuit, the booster coil cannot draw enough current to open the split-coil valve. When sensor contacts do reclose, the secondary valve will close, and the burner system will be in the normal pre-ignition circuit.
e. Flame Failure
In case of flame failure, the sensor contacts will re-close in about 45 seconds. This will close the secondary valve and the burner system will be in the normal pre-ignition circuit.
f. Ignition Failure
If flame is not established as sensor contacts open, secondary valve will remain open until sensor contacts re-close. Sensor will continue to recycle the igniter and secondary valve (about once per minute) until ignition is made or dryer is turned off.
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 39
Section 5 Test Procedures
WARNING
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
26. ELECTRICAL CIRCUIT TO IGNITION
SYSTEM (Gas Models) a. While supporting the access panel, remove two screws from bottom edge of access panel.
b. Gently lower the access panel to disengage locators from bottom edge of front panel. c. Close main gas shut-off valve. Refer to
d. Remove valve wire harness disconnect block from the holding and booster coil. Refer to
e. Plug dryer power cord into wall receptacle, and start the dryer in a heat setting (refer to the
Operating Instructions supplied with dryer).
f. Set test meter to read AC voltage and apply meter probes into terminals on the dryer harness plug that would correspond to
terminals “1” and “2” on the coil. Figure 8.
Meter should register line voltage in all Fabric settings, except NO HEAT which should read
“zero” VAC.
g. If meter does not read line voltage in step “f”, check motor switch, thermostats, fabric switch, accumulator, or timer.
SECONDARY
COIL
5
4
4 5
1
2
3
WARNING
To reduce the risk of fire, explosion and electric shock, close the valve in the gas supply line to the gas dryer and disconnect the electrical power unless gas or power supplies are required to perform test procedure.
W263
27. GAS VALVE COILS CHECK (Gas Models) a. While supporting the access panel, remove two screws from bottom edge of access panel. b. Gently lower the access panel to disengage locators from bottom edge of front panel.
c. Close main gas shut-off valve. Refer to
d. Remove disconnect blocks from gas valve coils.
e. Set test meter to read Ohms and put meter
probes to terminals shown in Figure 9, and in
the following chart.
COIL TOLERANCE READINGS
Meter probes to terminals: Meter should read:
Holding Coil – Terminals 1 & 2
Booster Coil – Terminals 1 & 3
1365 ± 230 Ohms
560 ± 100 Ohms
Secondary Coil – Terminals 4 & 5 1325 ± 230 Ohms
NOTE: If meter registers any other readings than those listed above, the respective coil(s) should be replaced.
D270SE3A
HOLDING
AND BOOSTER
COIL
Figure 9
40 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 5 Test Procedures
WARNING
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
28. SENSOR CHECK (Gas Models) a. While supporting the access panel, remove two screws from bottom edge of access panel.
b. Gently lower the access panel to disengage locators from bottom edge of front panel. c. Close main gas shut-off valve. Refer to
d. Remove wires from sensor terminals.
e. Set test meter to read Ohms and put meter probes on sensor terminals. Meter should read
“zero” Ohms. If meter registers an Ohm reading of any amount, replace sensor.
29. IGNITER CHECK (Gas Models) a. While supporting the access panel, remove two screws from bottom edge of access panel. b. Gently lower the access panel to disengage locators from bottom edge of front panel. c. Close main gas shut-off valve. Refer to
d. Disconnect igniter wires at disconnect block.
e. Set test meter to read Ohms and put meter probes on terminals of igniter wires.
f. Meter should read between 45 – 200 Ohms.
NOTE: If meter does not read appropriate Ohms, then replace the igniter.
IMPORTANT: Always examine all wires, terminals and connectors to be sure wiring is correct before replacing any components.
IGNITER AND
BRACKET
ATTACHING
SCREW
WHITE
CERAMIC
PORTION
SILICON CARBIDE IGNITER AND
BRACKET ASSEMBLY
D337SE3A
Figure 10
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 41
Section 5 Test Procedures
WARNING
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
30. THERMAL FUSE (Electric Models) a. While supporting the access panel, remove two screws from bottom edge of front access panel. b. Gently lower the access panel to disengage panel locators from bottom edge of front panel. c. Label and disconnect wires from thermal fuse.
NOTE: Refer to wiring diagram when rewiring thermal fuse.
d. Set multimeter to read Ohms. Apply meter probes to thermal fuse terminals. Multimeter should read 0 Ohms. If the meter does not show any reading (infinite Ohms), then the fuse is open. If the fuse is open, then replace BOTH the thermal fuse and the limit thermostat.
31. HEATER ASSEMBLY (Electric Models) a. While supporting the access panel, remove two screws from bottom edge of access panel. b. Gently lower the access panel to disengage panel locators from bottom edge of front panel. c. Disconnect wires from heater assembly.
NOTE: Refer to wiring diagram when rewiring heater assembly.
d. Set meter to read Ohms. Apply meter probes to the heater assembly terminals. Meter should read as follows: (Cold Ohms).
Element
Color
Code
Red
KW Voltage/Hz. Resistance Reading
5 240 V 60 Hz. 10.39 ± .31 Ohms Cold
White 4.75 208 V 60 Hz. 8.2 ± .5 Ohms Cold
Orange 5.35 240 V 60 Hz. 9.72 ± .3 Ohms Cold
Purple 4.25 208 V 60 Hz. 9.27 ± .3 Ohms Cold
32. CYCLING OR LIMIT THERMOSTAT a. While supporting the access panel, remove two screws from bottom edge of access panel. b. Gently lower the access panel to disengage panel locators from bottom edge of front panel. c. Label and disconnect wires from thermostat.
NOTE: Refer to wiring diagram when rewiring thermostat.
Cycling Thermostat (S.P.S.T. – 2 Terminals) or Limit Thermostat d. Set meter to read Ohms.
(1) Apply meter probes to the thermostat terminals.
(2) Meter should read “zero.”
42 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 512176
Section 5 Test Procedures
WARNING
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
33. DOOR SWITCH a. While supporting the access panel, remove two screws from bottom edge of access panel. b. Gently lower the access panel to disengage locators from bottom edge of front panel. c. Remove two screws holding bottom tabs on front panel to dryer side panels. Swing bottom of front panel away from dryer far enough to disengage hold-down clips and locators from cabinet top.
d. Disconnect wires from door switch.
NOTE: Refer to model wiring diagram when rewiring door switch.
e. Set meter to read Ohms and apply meter probes on switch terminals 1 and 3 with door closed.
You should get “zero” reading.
f. Apply probes to terminals 1 and 2 with door closed. The meter should read “infinite”.
g. Open door. Meter should read “infinite” between 1 and 3 and “zero” between 1 and 2.
512176 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT 43
44
Section 6
Internal Wiring of Dryer Motor Switch
WARNING
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
ORANGE/COPPER
MAIN
START
CUSTOMER CIRCUIT
PUSH TO
START
LINE
2 6 4 3 5 1
S
R
R
G
Motor Switch
Attaching Screws
SWITCH SHOWN IN START POSITION
2 6 4 3 5 1
R.S.P.C.
G
Figure 11
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D329SE3D
512176
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Table of contents
- 1 Home Dryers
- 1 Refer to Page 6 for Model Numbers
- 5 Safety Information
- 6 Locating an Authorized Servicer
- 7 Introduction
- 7 Customer Service
- 7 Nameplate Location
- 8 Model Identification
- 9 How Your Dryer Works
- 10 Troubleshooting
- 10 1. No Timer Advance In Automatic Cycles
- 10 1. Remove any damp clothing from the dryer.
- 10 2. Set the timer to an Automatic cycle. Set fabric selector switch to Regular.
- 10 3. Remove the top 3 screws holding the control hood to the rear panel.
- 10 4. Start dryer by pushing in timer knob.
- 10 5. Using a volt/ohm meter set to AC voltage, measure the voltage across terminal “T” and terminal “M” on timer. Refer to Figure 1.
- 10 6. Meter should read no voltage when the unit is first started and the dryer is still heating. Continue to monitor these points until the heating element has shut off (this will take several minutes even with an empty load). When the heating element ...
- 10 7. If meter does not read 120 Volts after the unit has reached proper operating temperature use meter to check for 120 AC Voltage between terminal “A” and terminal “N” (neutral) on the timer.
- 10 8. If voltage is present, recheck voltage between “T” and “M”.
- 10 9. If voltage is present, but timer does not advance, replace timer.
- 10 10. If meter does not read 120 Volts at “A” and “N”, check the wire connections at the heating element and timer (blue/black wire). If the connections are good, UNPLUG dryer, remove wire at terminal “A” on timer and perform an ohms check ...
- 11 1. Remove any damp clothing from the dryer.
- 11 2. Set the timer to an Automatic cycle. Set fabric selector switch to Regular.
- 11 3. Remove the top 3 screws holding the control hood to the rear panel.
- 11 4. Start dryer by pushing in timer knob.
- 11 5. Using a volt/ohm meter set to AC voltage, measure the voltage across terminal “T” and terminal “N” on timer. Refer to Figure 1.
- 11 6. Meter should read no voltage when the unit is first started and the dryer is still heating. Continue to monitor these points until the burner has shut off (this will take several minutes even with an empty load). When the burner shuts off, meter s...
- 11 7. If voltage is present, but the timer does not advance, replace timer.
- 11 8. If meter does not read voltage, check the wiring continuity using ohm scale on meter. UNPLUG dryer. Remove Red/Black striped wire from terminal “T” on timer and perform an ohms check between the timer wire and the cycling thermostat terminal, ...
- 12 2. Dryer Motor Does Not Run
- 14 3. Dryer Stops in Cycle; Quits After the First Few Loads; Has a Burning Smell; Cycles On Motor Thermal Protector
- 15 4. Dryer Motor Runs But Cylinder Does Not Turn
- 16 5. Dryer Motor Does Not Stop
- 17 6. Dryer Runs Only When Door is Open
- 18 7. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite
- 20 8. Igniter Does Not Glow (Gas Supply Sufficient) – Gas Dryer Models
- 21 9. Burner Ignites and Goes Out Repeatedly – Gas Dryer Models
- 22 10. Igniter Glows But Burner Does Not Ignite – Gas Dryer Models
- 23 11. Dryer Heater Assembly or Burner Shuts Off Prematurely
- 24 12. Dryer Heater Assembly or Burner Repeatedly Cycles Off On Limit Thermostat
- 26 13. Dryer Heater Assembly or Burner Does Not Shut Off
- 27 14. Clothes Do Not Dry in Dryer
- 28 15. Timer Does Not Advance in Automatic Cycle
- 29 16. Clothes Are Too Hot When Removed From Dryer
- 30 17. Excessive Chattering or Vibrating Noise in Dryer
- 31 18. Excessive Humming or Whistling Noise in Dryer
- 32 Adjustments
- 32 19. Leveling Legs
- 33 20. Burner Flame (Gas Models)
- 34 Test Procedures
- 34 21. Timer Contacts
- 35 22. Fabric Selector Switch
- 36 23. Drive Motor
- 39 24. Motor Switch
- 41 25. Burner System Operation
- 42 26. Electrical Circuit To Ignition System (Gas Models)
- 42 27. Gas Valve Coils Check (Gas Models)
- 43 28. Sensor Check (Gas Models)
- 43 29. Igniter Check (Gas Models)
- 44 30. Thermal Fuse (Electric Models)
- 44 31. Heater Assembly (Electric Models)
- 44 32. Cycling or Limit Thermostat
- 45 33. Door Switch
- 46 Internal Wiring of Dryer Motor Switch