Unimac UTG50FSP111TW08 Stacked and Parts Diagram

Homestyle

SWD452C

Stacked Washer/

Dryers

Refer to Page 6 for Model Numbers

Troubleshooting

www.comlaundry.com

Part No. 802848R2

August 2011

Table of

Section 1 – Safety Information ...............................................................3

Locating an Authorized Servicer...........................................................4

Contents

Section 2 – Introduction..........................................................................5

Customer Service...................................................................................5

Nameplate Location...............................................................................5

Model Identification..............................................................................6

How Your Stacked Washer/Dryer Works.............................................7

Section 3 – Troubleshooting....................................................................9

1. Washer Motor Circuit ...................................................................9

2. Troubleshooting Knocking Noise .................................................9

3. No Spin Due to Out-of-Balance Switch Wiring Problem

Starting Serial Nos. Beginning 0307...........................................10

4. Troubleshooting LEDs on Washer Inverter Controls Starting

Machine Serial No. 0911014603 ................................................11

5. No Spin (Washer)........................................................................11

6. Troubleshooting Shock Absorbers..............................................13

Section 4 – Dryer Troubleshooting ......................................................15

7. Dryer Motor Does Not Run ........................................................16

8. Dryer Stops in Cycle; Quits After the First Few Loads;

Has a Burning Smell; Cycles On Motor Thermal Protector.......18

9. Dryer Motor Runs But Cylinder Does Not Turn ........................19

10. Dryer Motor Does Not Stop .......................................................20

11. Dryer Runs Only When Door is Open........................................21

12. Dryer Heating Assembly Does Not Heat or

Burner Does Not Ignite...............................................................22

13. Igniter Does Not Glow (Gas Supply Sufficient) –

Gas Dryer Models .......................................................................24

14. Burner Ignites and Goes Out Repeatedly –

Gas Dryer Models .......................................................................25

15. Igniter Glows But Burner Does Not Ignite –

Gas Dryer Models .......................................................................26

16. Dryer Heater Assembly or Burner Shuts Off Prematurely .........27

17. Dryer Heater Assembly or Burner Repeatedly

Cycles Off On Limit Thermostat ................................................28

18. Dryer Heater Assembly or Burner Does Not Shut Off...............30

19. Clothes Do Not Dry in Dryer......................................................31

20. Timer Does Not Advance in Automatic Cycle ...........................32

21. Clothes Are Too Hot When Removed From Dryer ....................33

22. Excessive Chattering or Vibrating Noise in Dryer .....................34

23. Excessive Humming or Whistling Noise in Dryer......................35

Section 5 – Washer Control Troubleshooting .....................................37

24. Washer Error Code Listing .........................................................37

25. Washer Will Not Start – No LEDs/Lights Lit

(No response to start switch).......................................................38

802848 1

26. Washer Will Not Start – Door Open Error (Wash/Rinse LEDs Flashing –

Door must be closed and attempting to lock) .............................40

27. Washer Will Not Start – No Door Lock

(Door LED Flashing) ..................................................................42

28. Washer Motor Will Not Run

(Door/Final Spin LEDs Flashing)...............................................44

29. Washer Will Not Fill – No Communication Error

(Wash/Door LEDs Flashing) ......................................................46

30. Washer Overflows.......................................................................48

31. Pump Does Not Operate .............................................................50

32. Serial Communication Error

(Final Spin/Rinse LEDs Flashing) ..............................................52

33. Washer Will Not Heat – Open/Shorted Temperature Sensor (Heating LED Flashing at End of Cycle)

(Models equipped with heater) ...................................................54

34. Washer Will Not Heat (Models equipped with heater)...............56

Section 6 – Adjustments ........................................................................59

35. Cabinet Leveling Legs ................................................................59

36. Washer Loading Door.................................................................60

37. Washer Motor Belt Tension........................................................61

38. Washer Door Catch.....................................................................62

39. Shipping Braces ..........................................................................64

40. Burner Flame (Gas Models)........................................................65

Section 7 – Dryer Test Procedures .......................................................67

41. Timer Contacts............................................................................67

42. Fabric Selector Switch ................................................................68

43. Drive Motor.................................................................................69

44. Motor Switch...............................................................................72

45. Burner System Operation............................................................74

46. Electrical Circuit To Ignition System (Gas Models) ..................75

47. Gas Valve Coils Check (Gas Models) ........................................75

48. Sensor Check (Gas Models)........................................................76

49. Igniter Check (Gas Models)........................................................76

50. Thermal Fuse (Electric Models) .................................................77

51. Heater Assembly (Electric Models)............................................77

52. Cycling or Limit Thermostat.......................................................77

53. Door Switch ................................................................................78

Section 8 – Internal Wiring of Dryer Motor Switch...........................79

2 802848

Section 1

• 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

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.

a 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.

802848 3

Safety Information

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Repairs that are made to your products by unqualified persons can result in hazards due to improper assembly or adjustments subjecting you or the inexperienced person making such repairs to the risk of serious injury, electrical shock or death.

W007

WARNING

If you or an unqualified person perform service on your machine, you must assume the responsibility for any personal injury or property damage which may result. The manufacturer will not be responsible for any injury or property damage arising from improper service and/or service procedures.

W286

WARNING

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.

4 802848

Section 2

SWD1199P

Nameplate

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 either of the numbers listed below:

(920) 748-3121 Ripon, Wisconsin

+32 56 41 20 54 Wevelgem, Belgium

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.

802848 5

Introduction

Model Identification

Information in this manual is applicable to these washers.

ATE50FWP431AW01 LTSA7A*N3300

ATG50FWP301AW01 LTSA7A*N4350

BTE50FSP171TW01 LTSA9A*N

BTE50FSP281CW01 LTSA9A*N1180

BTG50FSP091CW01 LTSA9A*N3000

BTG50FSP111TW01 LTSA9A*N3060

FTE50FSP301NW01 LTUA7A*N

LTE50FGP541NW23 LTUA7A*N2802

LTKA6A*N4350 LTUA9A*N

LTL50FGP541NW23 LTZA7A*N

LTSA7A*N LTZA7A*N2802

LTSA7A*N1500 LTZA9A*N

LTSA7A*N2989 LTZA9A*N0902

LTSA7A*N3000

* Add Letter To Designate Color. W – White Q – Bisque

6 802848

How Your Stacked Washer/Dryer Works

SWD828N

Pressure Switch

(Located inside

control cabinet)

Control

(Located inside

control cabinet)

Electric

Drain Pump

Motor

Outer

Tub

Inner

Basket

Mixing

Valve

Exhaust Fan

Inverter Control

(Mounted to base

of washer)

Motor

Cylinder

Air Duct

Lint

Filter

Heating Element (Electric Models)

Introduction

802848 7

General (Dryer)

The dryer uses heated air to dry loads of laundry. When the motor is started, the exhaust fan pulls fresh air in through louvers at the rear of the dryer and over the heat source (burner flame for gas and heating element for electric). The heated air moves through the heater duct and into the cylinder, where it circulates through the wet load. The air then passes through the lint filter, air duct and exhaust fan, where it is vented to the outdoors.

General (Washer)

This frontload washer provides some of the same principles of operation as the typical topload washers. It senses water level, it dispenses the desired laundry detergent, agitates the clothes for good cleaning action, removes the water out of the washer and spins the clothing in preparation for the dryer.

The difference in operation is primarily the rotational washing agitation created for the horizontal basket and drum. This agitation tumbles the clothes in a clockwise, pause, and counter-clockwise direction. This reversing tumbling action provides an efficient washing process and requires less laundry detergent and less water.

The cycle begins by pressing the start button, which locks the loading door. The type of cycle and water temperature are determined by the cycle select switch and temperature selector switch.

The inner basket starts agitating during the wash water fill. A column of air is trapped in a pressure bulb and hose. The air pressure continues to increase as the inner basket fills with water until it is great enough to activate the pressure switch which then causes the wash fill to stop.

The regular and perm press agitate cycles tumble the clothing in a clockwise direction for a period of 15 seconds, pauses for nine seconds and then tumbles the clothing in a counterclockwise direction for 15 seconds. This agitation continues until the wash cycle. The machine stops agitating and turns on the pump which removes the wash water.

Upon completion of the wash cycle, the machine goes into two rinse cycles. Fresh cold water is brought into the inner basket via the mixing valve until the pressure switch shuts off the water while agitating. The rinse cycle consists of agitation for a predetermined amount of time then a spin mode with the pump running while the machine goes into a series of 4 short 500 RPM spins.

After all the rinse cycles have been completed, the washer goes into a final high spin cycle to extract as much water as possible from the clothing to prepare

them for the dryer. The spin speeds and duration of this final high spin cycle are determined by the type of wash cycle selected (refer toTable 1 or Table 2).

NOTE: Washer may not reach 1000 RPM because of an out-of-balance condition. Control may limit speed to 850, 650 or 500 RPM depending on severity of out-of-balance condition.

Models Through Serial No. 0911014602

Regular Perm Press Delicate

650

RPM

1000 RPM

3

minutes

3

minutes

Tab le 1

4

minutes

2

minutes

4

minutes

0

minutes

Models Starting Serial No. 0911014603

Regular Perm Press Delicate

500

RPM

650

RPM

1000 RPM

0

minutes

3

minutes

3

minutes

Tab le 2

0

minutes

6

minutes

0

minutes

4

minutes

0

minutes

0

minutes

Technical (Washer)

The basic operational system of this washer consists of the control, temperature switch, the inverter control, pressure switch, water valves, electric pump, A.C. motor and cycle select switch.

The control performs all timing functions like the timer in a topload washer.

The inverter control uses a speed sensor on the motor to measure the drum RPM. Before entering any spin step the inverter control measures the RPM of motor to sense out-of-balance. The inverter control will try to redistribute the clothes if an out-of-balance condition exists; the inverter control will limit the spin speed to several speeds depending on the severity of the out-ofbalance condition. If the out-of-balance condition is severe enough the inverter control will limit speed to 90 RPM and will not spin.

NOTE: An additional out-of-balance switch is used to detect any out-of-balance condition during spins. If this switch opens during a spin step, the inverter control immediately stops and then restarts the spin.

8 802848

1. Washer Motor Circuit

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Windings

Tach. C i r c u i t

White

Gray

Red

5

43

21

Resistance Values:

Tachometer Circuit: Terminals 4 –5 Approx. 115 ohms

Windings:

Terminals 1–2, 2–3, 1-3 Approx. 4.5 ohms

Section 3

Troubleshooting

2. Troubleshooting Knocking Noise

If a frontload washer produces a noise similar to a knock on a door, it might be due to a flat spot on the belt. The knocking sound is made when the flat spot hits the pulley. The knocking may occur

802848 9

during a pulse spin and fade after reaching a higher RPM.

To correct this condition, replace the belt.

Troubleshooting

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be

reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Wire Clamp

First Section of Tape 4.5 In. (11.43 cm) From End of Terminals

Third Section of Tape 14 In. (35.56 cm) From End of Terminals

Wire Tie

FLW1842B

45 degrees

Cut Off Broken Wires Here

3. No Spin Due to Out-of-Balance Switch Wiring Problem Starting Serial Nos. Beginning 0307

A “no spin” condition could be the result of an open circuit in the wire harness or out-of-balance switch. First, check that the harness is still connected to the out-of-balance switch. The out-of-balance switch is a normally closed switch. (continued)

Figure 1

10 802848

Troubleshooting

FLW1844B

LEDs

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

If broken wires are found at the out-of-balance switch wire support, cut off portion of wires as shown in Figure 1 and add new UL approved terminals.

4. Troubleshooting LEDs on Washer Inverter Controls Starting Machine Serial No.

a. To test the electrical circuit, disconnect

electrical power to the washer.

b. Remove the “H1” connector from the inverter

control assembly.

c. Use an Ohm meter to check the black/white to

violet/white wires. Circuit should read closed. An open reading indicates a bad switch or wire harness problem.

d. Flex the harness at the plastic wire clamp and

test continuity. If the base wire harness has an open circuit it MUST be replaced or the broken wires must be repaired with UL approved terminals.

e. After replacing or repairing the wire harness,

wrap electrical tape around wires in two locations as indicated below and in Figure 1. Then secure the harness wires to the original factory locations using clamp and wire tie. Refer to Figure 1.

(1) The plastic wire clamp should be angled

toward the switch at 45 degrees.

(2) The clamp should wrap around the first

section of tape on the harness, which should be placed approximately 4.5 inches (11.43 cm) from end of terminals.

(3) The harness should be secured to the

inverter control shield with a wire tie.

(4) The tie should wrap around the third section

of tape on the harness, which should be placed approximately 14 inches (35.56 cm) from end of terminals. Refer to Figure 1.

802848 11

0911014603

There are three LEDs on the control to assist with troubleshooting (refer to Figure 2):

• Green LED on constant = 5VDC power supply present

• Green LED flashing one second on/one second off = inverter control power up

• Red LED flashing four times/second = inverter control is communicating with front end control

Figure 2

5. No Spin (Washer)

A no spin condition is not caused by intermittent operation of the motor or motor control (inverter assembly). DO NOT replace these components for no spin complaints if the unit passes the following procedure:

Troubleshooting

No spin.

FLW1789S

Allow unit to go

through complete

final spin cycle.

Does unit spin at

high speed?

Motor and motor control board are operating properly. Do not replace them.

Yes

With no load, rapid advance to final spin or select spin only cycle. Close door and start washer.

BEFORE replacing the motor control board, conduct the following tests.

No

Is pressure

switch or pressure

switch wiring

inoperative?

Is load out-of-

balance?

Unit makes three attempts to rebalance out-ofbalance loads. If all attempts fail, final high speed spin is aborted. ONLY proper loading can correct problem.

Yes

Is there a slow drain, clogged

pump or

oversudsing

condition?

Pressure switch must register an "empty" condition before unit will enter spin. Clear drain or pump.

Yes

Replace switch and/or wiring.

No

Does unit spin now?

No

Check for broken out-ofbalance switch wires. Refer to

No Spin Due to Out-of-Balance Switch Wiring Problem Starting Serial Nos. Beginning 0307

paragraph.

Yes

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

5. No Spin (continued)

12 802848

6. Troubleshooting Shock Absorbers

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

A squeaking noise, oil seen on the base of the washer, or an out-of-balance condition may mean one or more shock absorbers need to be replaced.

To determine if there is an inoperative shock:

1. Remove front access panel.

2. Check height of rod or rod spacing above shock. If all four shocks are uniform and have about two inches of rod showing when basket is empty, shocks don’t need replacing. Refer to Figure 3. If one or more shocks is showing less than two inches of rod, then an internal spring has broken and all four shocks should be replaced.

3. Check base of washer below shock absorbers for grease or oil. Shocks are not oil filled. Any oil is from grease used internally to lubricate damper of shock. A small amount of grease/oil on base is normal and doesn’t indicate failure. A large amount of grease/oil indicates a shock that might fail soon. Do not replace shock until the internal spring has broken as described in Step 2.

Troubleshooting

802848 13

Troubleshooting

Good Shock Shows Approximately 2 inches of Rod

FLW1845B

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Figure 3

14 802848

Section 4

To reduce the risk of electric shock, fire, explosion, serious injury or death:

• Disconnect all electric power to the machine and accessories before servicing.

• Close gas shut-off valve to gas dryer before servicing.

• Never start machine with any guards/panels removed.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the machine is properly grounded.

• Washer motor not grounded! Disconnect electric power before servicing motor.

W502

WARNING

Dryer Troubleshooting

IMPORTANT: Refer to wiring diagram for aid in testing dryer components.

802848 15

Dryer Troubleshooting

Dryer motor does not run.

Is power cord

plugged in?

Plug in cord.

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.

Yes

Is loading

door closed?

Close door.

No

Is door switch

inoperative?

Yes

Test switch and replace if inoperative.

Are motor

starting

functions

inoperative,

does not

start, or motor

just hum?

Refer to

Adjustments

section to check motor switch and motor windings.

Yes

Is motor

dead,

won't run?

Refer to

Adjustments

section to check motor switch, motor windings and main windings.

Yes

SWD1706S-a

Yes

No

Is timer

improperly

set?

Reset timer or try another cycle.

Is timer

inoperative?

Test timer and replace if inoperative.

No

Yes

No

Continued on

next page.

No

7. Dryer Motor Does Not Run

16 802848

7. Dryer Motor Does Not Run (continued)

SWD1706S-b

Continued from

previous page.

Is power cord

miswired?

Refer to wiring diagram for correct wiring.

Refer to wiring diagram.

Is wiring

broken, loose

or incorrect?

Is motor wire

harness

connection

block loose?

Firmly press connection block onto motor switch.

Remove belt and determine if motor shaft will spin. Replace motor if shaft is locked up.

Is there a bind

in motor

bearing?

Is motor

centrifugal

switch sticky

or plugged

with lint?

Remove dust or lint and spray with a cleaner and lubricant.

Wait two or three minutes for overload protector to reset. If protector cycles repeatedly, refer to next flowchart.

Has motor

overload protector

cycled?

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

Dryer Troubleshooting

802848 17

Dryer Troubleshooting

Dryer stops in cycle, quits after first few loads, has burning smell or cycles on motor thermal protector.

Is voltage incorrect?

Refer to nameplate in door well for correct voltage. Refer to

Installation Instructions

(supplied with unit) for electrical requirements.

Yes

Is clothes

load too

large?

No

Remove part of load. A normal washer load is a normal dryer load. Maximum load: dryer cylinder one half full of wet clothes.

Yes

Is clothes

cylinder

binding?

Check cylinder for binding and "out of round" condition. Check front and rear bulkheads for warping. Check support rollers for binding. Check cylinder seals and glides for wear or damage. Check for clothes lodged between cylinder baffle and bulkhead.

No

Yes

Is there

broken, loose

or incorrect

wiring?

Refer to wiring diagram.

Yes

Are motor

switch

functions

inoperative?

Refer to

Adjustments

section to check switch and windings.

Yes

Is there a

short in

motor

winding?

No

Is a clothes

item caught in

fan?

Check fan for obstruction.

Yes

No

SWD1690S

Refer to

Adjustments

section to check switch and windings.

No

Yes

No

8. Dryer Stops in Cycle; Quits After the First Few Loads; Has a Burning Smell; Cycles On Motor Thermal Protector

18 802848

9. Dryer Motor Runs But Cylinder Does Not Turn

Dryer motor runs but cylinder does not turn.

Is motor drive

pulley loose?

Tighten pulley.

Is belt

installed on

pulley?

No

Install belt.

No

Is cylinder

belt broken?

Replace belt.

Yes

Is clothes

cylinder

binding?

No

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 idler lever

spring broken,

weak or

disconnected?

Replace or reconnect spring.

Yes

Is there oil on

cylinder?

Wipe oil from cylinder.

Yes

Is belt "inside

out" ?

Reinstall belt with ribbed surface against cylinder.

Yes

Is idler arm

binding?

Add grease between idler arm and motor mount. Replace idler arm and bolt if needed.

Yes

No

Is dryer

overloaded?

Remove some laundry from dryer.

Yes

No

SWD1691S

Yes

No

Is the wrong

motor

installed?

Refer to parts manual for correct motor part number.

Is the wrong

belt installed?

Check belt part number against correct part number in parts manual and replace belt if needed.

Is idler arm

bent?

Replace idler arm.

No

Yes

Is belt routed

on wrong side

of idler lever?

Reroute belt.

No

Yes

Dryer Troubleshooting

802848 19

Dryer Troubleshooting

Dryer motor does not stop.

Is wiring to

motor switch

incorrect?

Refer to wiring diagram.

Yes

Is motor

centrifugal

switch sticky

or plugged

with lint?

No

Remove dust or lint and spray with a cleaner and lubricant.

Yes

Is door switch

inoperative?

Test switch and replace if inoperative.

No

Yes

SWD1707S

Is timer

inoperative?

Test timer and replace if inoperative.

No

Yes

10. Dryer Motor Does Not Stop

20 802848

11. Dryer Runs Only When Door is Open

Dryer runs only when door is open.

Is door switch

miswired?

Rewire door switch. Refer to wiring diagram.

Yes

SWD1693S

Replace door switch.

No

Dryer Troubleshooting

802848 21

Dryer Troubleshooting

Dryer heating assembly does not heat or burner does not ignite.

Is exhaust

system

improper or

inadequate?

Refer to

Installation Instructions

(supplied with unit) for exhaust requirements.

Is exhaust duct made of plastic or thin

foil?

No

Replace with rigid or semirigid metal exhaust duct.

Yes

Is house fuse

blown or

circuit breaker

tripped?

Check fuses or circuit breakers.

Yes

Is limit

thermostat

inoperative?

Test thermostat and replace if inoperative.

Yes

Electric Models:

Is heater

assembly

inoperative?

Test heater assembly and replace if cold Ohms do not read between 9 and 10.5 Ohms.

Yes

Electric

Models: Is

thermal fuse

inoperative?

Test thermal fuse and replace if inoperative.

Yes

SWD1708S-a

Yes

No

Is drive motor switch inoperative?

Test switch and replace if inoperative.

No

Yes

Continued on

next page.

No

Is temperature

selector switch

set at FLUFF,

or inoperative?

Reset or test switch and replace if inoperative.

Is timer

improperly set

(set in a cool-

down period, or

a no heat

cycle)?

Reset timer. Try another cycle.

No

Yes

No

Yes

No

12. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite

22 802848

Dryer Troubleshooting

SWD1708S-b

Gas Models: Is

harness properly

connected to gas

controls?

Check harness connections to gas valve coils, sensor and main harness. Reconnect as required.

Test igniter and replace if inoperative. Refer to

Dryer Test Procedures

section.

Gas Models:

Is igniter

inoperative?

Gas Models:

Is sensor

inoperative?

Test sensor and replace if inoperative.

Continued from

previous page.

Yes

No

Yes

No

Gas Models:

Is gas flow in

gas orifice restricted?

Clean out gas orifice.

Yes

Is cycling

thermostat

inoperative?

Test thermostat and replace if inoperative.

Yes

Is wiring

broken, loose

or incorrect?

Refer to wiring diagram.

Yes

Is timer

inoperative?

Test timer and replace if inoperative.

No

Yes

No

Gas Models:

Are gas valve

coils

inoperative?

Test coils and replace if inoperative. Refer to

Dryer Test Procedures

section.

Yes

No

Gas Models:

Is gas supply

insufficient?

Check gas shut-off valve in dryer and main gas line valve. Open partially closed gas shut-off valve or correct low gas pressure.

Yes

No

Yes

12. Dryer Heating Assembly Does Not Heat or Burner Does Not Ignite (continued)

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