Alliance Laundry Systems HWT020LA, HWT020WC, HWT020WA, HWT020LC, HWT020LM Service Manual

...

Commercial

Automatic

Washer

Metered and Nonmetered

Refer to Page 6 for Model Numbers

Service

www.comlaundry.com

H002C

Part No. 39201R2

July 2001

Section 1 – Safety Information

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

Section 2 – Introduction

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

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

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

How Your Washer Works .......................................8

Section 3 – Troubleshooting

1. No Hot Water .................................................11

2. No Cold Water ...............................................11

3. No Warm Water .............................................11

4. Water Fill Does Not Stop At Proper Level ....12

5. Timer Does Not Advance ..............................12

6. Motor Does Not Run ......................................13

7. No Agitation ...................................................13

8. Constant Agitation .........................................14

9. Washer Overheats, Cycles On Motor Thermal Protector, Switch Actuator Kicks

In And Out .....................................................14

10. Slow Spin Or No Spin ....................................15

11. Constant Spin .................................................15

12. Washer Stops In Cycle; Quits After A Couple

Loads; Is Intermittent .....................................16

13. Washer Is Locked Up Or Binding .................16

14. Outer Tub Does Not Empty ...........................16

15. Excessive Vibration .......................................17

16. Water Leaking From Outer Tub ....................17

Section 4 – Grounding

17. Wall Receptacle Polarity Check ....................19

18. Power Cord To Control Hood, Control Hood To

The Control Panel Frame ...............................19

19. Control Hood Wire Harness To Top Left Rear

Corner Gusset Of Cabinet ..............................20

20. Wire Harness To Motor .................................20

Section 5 – Service Procedures

21. Control Hood Assembly ................................21

22. Timer Assembly .............................................24

23. Meter Or Timer Case Assembly ....................34

24. Drain Hose Elbow ..........................................35

25. Loading Door .................................................35

26. Agitator ..........................................................37

27. Agitator, Drive Bell And Seal Assembly .......37

28. Front Panel .....................................................41

29. Cabinet Top Assembly ...................................42

30. Motor And Mounting Bracket .......................44

31. Motor Drive Pulley ........................................48

32. Motor Switch .................................................48

33. Idler Lever And Pulley ..................................49

34. Mixing Valve Assembly ................................50

35. Door Switch ...................................................51

36. Washtub And Balance Ring ...........................52

37. Hub And Seal Kit Assembly ..........................56

38. Outer Tub .......................................................60

39. Drive Pulley, Helix And Brake ......................62

40. Weldment And Bearing Assembly ................66

41. Transmission Assembly .................................68

42. Upper Bearing Assembly ...............................75

43. Friction Ring ..................................................76

Section 6 – Adjustments

44. Leveling Legs ................................................79

45. Pressure Switch ..............................................80

46. Belt (Agitate and Spin) ..................................80

Section 7 – Motor Test Procedure ...................81

Section 8 – Cycle Sequence Charts

Timer No. 28716 Cycle Sequence.........................83

Timer No. 31111P Cycle Sequence.......................84

Timer No. 34601P Cycle Sequence.......................85

Timer No. 34602 Cycle Sequence.........................86

Section 9 – Internal Wiring of Washer Motor

Switch .....................................................................87

(continued)

the expressed written consent of the publisher.

39201 1

Section 10 – Wiring Diagrams ..........................89

Models HWT020*A, HWT020*C, HWT020*M, SWT020*A, SWT020*M, SWT021*A, SWT021*M, UWT021*A and

UWT021*M...........................................................90

Models HWT110*A, HWT110*C, HWT110*M, SWT110*A, SWT110*M, SWT111*A and

SWT111*M............................................................91

Models JWT110*A and JWT110*M.....................92

Models HWT120*A, HWT120*C, HWT120*M, SWT120*A, SWT120*M, SWT121*A and

SWT121*M............................................................93

Models SWT210*A and SWT210*M ...................94

Models SWT220*A, SWT220*M, SWT221*A

and SWT221*M.....................................................95

Models SWT320*A, SWT320*M, SWT321*A

and SWT321*M.....................................................96

Models SWT420*A, SWT420*D, SWT420*M, SWT421*A, SWT421*D, SWT421*M, SWT520*A, SWT520*M, SWT521*A, SWT521*M, SWT620*M, SWT621*M,

SWT720*M and SWT721*M................................97

Model SWT620*A.................................................98

Models HWT620*C, SWT620*C, SWT621*C,

SWT620*D and SWT621*D.................................99

Models SWT720*A and SWT721*A..................100

Models SWTA21*M, SWTB20*M, SWTB21*J, SWTB21*M, SWTC20*M, SWTC21*M, SWTF20*M, SWTF21*M, SWTH21*J,

SWTH21*M and SWTJ21*M .............................101

2 39201

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.

a DANGER

Danger indicates the presence of a hazard that will cause severe personal injury, death or substantial property damage if the danger is ignored.

a WARNING

Warning indicates the presence of a hazard that can cause severe personal injury, death or substantial property damage if the warning is ignored.

a CAUTION

Caution indicates the presence of a hazard that will or can cause minor personal injury or property damage if the caution is ignored.

Additional precautionary statements (“IMPORTANT” and “NOTE”) are followed by specific instructions.

IMPORTANT

The word “IMPORTANT” is used to inform the reader of specific procedures where minor machine damage will occur if the procedure is not followed.

NOTE

The word “NOTE” is used to communicate installation, operation, maintenance or servicing information that is important but not hazard related.

In the interest of safety, some general precautions relating to the operation of this machine follow.

WARNING

• Failure to install, maintain and/or operate this product according to the manufacturer’s instructions may result in conditions which can produce serious injury, death and/or property damage.

• Do not repair or replace any part of the product or attempt any servicing unless specifically recommended or published in this Service Manual and that you understand and have the skills to carry out.

• Whenever ground wires are removed during servicing, these ground wires must be reconnected to ensure that the product is properly grounded and to reduce the risk of fire, electric shock, serious injury or death.

W006R1

39201 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.

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.

WARNING

W001R1

W007

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

W008

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 washer.

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 39201

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

W363PE3A

39201 5

Section 2 Introduction

Model Identification

Information in this manual is applicable to these washers.

Washer

Model

HWT020 HWT020 HWT020*M X 2 P HWT110 HWT110 HWT110*M X X 1 P HWT120 HWT120*C X X 2 P HWT120*M X X 2 P JWT110 JWT110*M X X 1 P SWTB20*M X X X 2 P SWTC20*M X X X 2 P SWTF20*M X X X 2 P SWT020 SWT020*M X 2 P SWTA21*M X X X 2 S SWTB21*M X X X 2 S SWTC21*M X X X 2 S SWTF21*M X X X 2 S SWTH21*M X X X 2 S SWTJ21*M X X X 2 S SWT021 SWT021*M X 2 S SWT110 SWT110*M X X 1 P SWT111 SWT111*M X X 1 S SWT120 SWT120*M X X 1 P SWT121 SWT121*M X X 2 S SWT210 SWT210*M X X 1 P SWT220 SWT220*M X X 2 P SWT221 SWT221*M X X 2 S

* Add Letter To Designate Color. L – Almond W – White Key: 1 = 1 Speed Motor, 2 = 2 Speed Motor, P = Porcelain Washtub, S = Stanless Steel Washtub

*AX 2 P *CX 2 P

*AX X 1P *CX X 1P

*AX X 2P

*AX X 1P

*AX 2 P

*AX 2 S

*AX X 1P

*AX X 1S

*AX X 1P

*AX X 2S

*AX X 1P

*AX X 2P

*AX X 2S

Non-

metered

Metered

Electronic

Display Control

Coin Slide

Ready

Coin

Drop

Ready

Coin

Drop

Installed

Card

Reader

Ready

Card

Reader

Installed

Motor Washtub

6 39201

Section 2 Introduction

Washer

Model

SWT320*AX X 2P SWT320*M X X 2 P SWT321 SWT321*M X X 2 S SWT420 SWT420 SWT420*M X X X 2 P SWT421 SWT421 SWT421*M X X X 2 S SWT520 SWT520*M X X X 2 P SWT521 SWT521*M X X X 2 S SWT620 SWT620 SWT620*D X X X 2 P SWT620*M X X X 2 P SWT621*C X X X 2 S SWT621 SWT621*M X X X 2 S SWT720 SWT720*M X X X 2 P SWT721 SWT721*M X X X 2 S UWT021 UWT021*M X 2 S

* Add Letter To Designate Color. L – Almond W – White Key: 1 = 1 Speed Motor, 2 = 2 Speed Motor, P = Porcelain Washtub, S = Stanless Steel Washtub

*AX X 2S

*AXXX 2P *DXXX 2P

*AXXX 2S *DXXX 2S

*AXX X 2P

*AXX X 2S

*AXX X2P *CXX X2P

*DXX X2S

*AXX X2P

*AXX X2S

*AX 2 S

Non-

metered

Metered

Electronic

Display Control

Coin Slide

Ready

Coin

Drop

Ready

Coin

Drop

Installed

Card

Reader

Ready

Card

Reader

Installed

Motor Washtub

39201 7

Section 2 Introduction

How Your Washer Works

MIXING

VALVE

WASHTUB

PRESSURE SWITCH

(Located

inside control

hood)

TIMER

(Located

inside meter

case)

AGITATOR

TRANSMISSION

MOTOR

The cycle begins with a wash fill. The water temperature is determined by the temperature selector. While water fills the washtub, a column of air is trapped in a pressure bulb and hose. The air pressure continues to increase as the washtub fills with water until it is great enough to activate the pressure switch. The pressure switch then causes the wash fill to stop

OUTER

TUB

PUMP

W488SE3A

and wash agitation to begin. However, the loading door must be closed for the washer to agitate or spin.

The washer uses a reversing type motor, a special drive belt and an idler assembly. The idler assembly applies tension to the outside of the drive belt.

8 39201

Section 2 Introduction

During agitation, the motor runs in the counterclockwise direction. The spring tension on the idler pulley applies the tension required to reduce the slack on the drive belt and maintain maximum belt to motor pulley contact. This eliminates belt slippage and ensures an efficient wash action, even with extra large loads.

The belt drives the transmission drive pulley in the counterclockwise direction. The pulley drives the helix which is splined to the input shaft of the transmission. This causes the input shaft to turn inside of a roller clutch which is pressed into the transmission cover. This roller clutch acts as a bearing in the counterclockwise direction allowing the transmission gears to operate. The transmission’s rack and pinion gear design produces a 210 degree agitation stroke at the output shaft of the transmission which drives the agitator. The brake assembly remains locked during the agitation mode since no pressure is applied to it by the transmission drive pulley.

After the wash agitation is completed, the timer advances into the first spin. During spin, the motor reverses turning in the clockwise direction to spin the water out of the washtub. The combination of water, washtub and load weight cause the drive belt tension on the idler side of the belt to overtake the idler spring pressure allowing the belt to become slack on the opposite side. This reduces the belt to pulley contact and allows slipping between the belt and pulley.

As water is removed by the pump and the momentum of the washtub increases, the idler spring tension gradually overcomes the belt tension removing the belt slack. This eventually increases the belt to pulley contact until maximum spin speed is achieved.

The drive pulley turns clockwise riding up the ramps of the helix, exerting pressure on the brake and forcing it to release from brake pads. The helix drives the input shaft of the transmission, and when the input shaft turns in the clockwise direction the roller clutch locks onto the shaft causing the entire transmission assembly to turn. None of the gears in the transmission are operating at this time. The hub of the washtub is splined to the transmission tube and rotates with the transmission assembly. The centrifugal force created by the spinning washtub causes water to be extracted from the clothes.

Water is introduced during the first spin to “SPRAY” the garments and remove suds from them. The initial spin is followed by rinse agitation to rinse away any detergent residue. The washer fills and then agitates like the wash portion of the cycle. Following rinse agitation, a final spin extracts the rinse water from the clothes preparing them for the dryer.

39201 9

Section 3

Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

IMPORTANT: Refer to appropriate model wiring diagram for aid in testing washer components.

1. NO HOT WATER

POSSIBLE CAUSE TO CORRECT

Hot water supply faucet is closed. • Open faucet. Water supply is cold. • Check water heater. Kinked hot water inlet hose. • Straighten or replace hose. Clogged mixing valve screen, or clogged screen in

outer end of inlet hose nearest water supply faucet. Inoperative hot water mixing valve solenoid. • Test solenoid and replace if inoperative. Inoperative timer. • Test timer and replace if inoperative. Inoperative temperature switch. • Test switch and replace if inoperative. Inoperative pressure switch. • Test switch and replace if inoperative. Clogged pressure hose. • Remove and clean or replace hose. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram.

• Disconnect hot water inlet hose, and clean or replace screen.

W003

2. NO COLD WATER

POSSIBLE CAUSE TO CORRECT

Cold water supply faucet is closed. • Open faucet. Kinked cold water inlet hose. • Straighten or replace hose. Clogged mixing valve screen, or clogged screen in

outer end of inlet hose nearest water supply faucet. Inoperative cold water mixing valve solenoid. • Test solenoid and replace if inoperative. Inoperative timer. • Test timer and replace if inoperative. Inoperative temperature switch. • Test switch and replace if inoperative. Inoperative pressure switch. • Test switch and replace if inoperative. Clogged pressure hose. • Remove and clean or replace hose. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram.

3. NO WARM WATER

POSSIBLE CAUSE TO CORRECT

No hot water. • Refer to Paragraph 1. No cold water. • Refer to Paragraph 2.

39201 11

• Disconnect cold water inlet hose, and clean or replace screen.

Section 3 Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

4. WATER FILL DOES NOT STOP AT PROPER LEVEL

POSSIBLE CAUSE TO CORRECT

Inoperative pressure switch. • Test switch and replace if inoperative. Air leak in pressure hose. • Replace hose. Sediment on or under mixing valve diaphragm,

defective diaphragm, or armature binding in armature guide.

Broken, weak or missing mixing valve armature spring.

A siphoning action started in washer will cause water to be siphoned from washer during cycle due to end of drain hose being lower than cabinet top of washer. Drain hose fits tight in standpipe or drain.

Water in pressure hose. • Blow air through hose to remove water. Broken, loose, shorted or incorrect wiring. • Refer to appropriate wiring diagram.

• Disassemble and clean mixing valve.

• Disassemble valve and replace spring.

• Install No. 562P3 Siphon Break Kit. Provide an air gap

around drain hose and drain receptacle.

W003

5. TIMER DOES NOT ADVANCE

POSSIBLE CAUSE TO CORRECT

Timer is designed to pause during fill periods. • Allow completion of fill period. Inoperative timer. • Test timer, and replace if inoperative. Loading door is open. • Close loading door. Loading door MUST be closed any

time the washer is set to fill, agitate or spin.

Washer will not fill. • Timer pauses until pressure switch is satisfied. Timer motor lead wire off timer terminal. • Refer to appropriate wiring diagram and reattach wire. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram. Timer is designed to pause when going from agitate

to spin. Timer is designed to stop if washer drive motor has

been over loaded and motor thermal overload has tripped.

• Allow time for timer to go through that step. See diagram for information on time required.

• Motor thermal protector reset time may vary depending upon the reason for the washer overload, however, it should reset within 15 minutes. Check to ensure that washer was not overloaded with clothes.

Is circuit breaker to washer tripped, disconnecting

• Reset circuit breaker.

power to washer. Washer will not fill. • Timer is designed to pause when going from spin into

rinse to allow the washtub to stop spinning before filling, make sure that timer has advanced into fill portion of rinse cycle.

12 39201

Section 3 Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

6. MOTOR DOES NOT RUN

POSSIBLE CAUSE TO CORRECT

Electrical power off, fuse blown or power cord not plugged in.

• Check laundry room for blown or loose fuse(s) or open circuit breakers. (Washer itself does not have an electrical fuse).

Loading door not closed or inoperative switch. • Close door or test switch and replace if inoperative. Timer improperly set. • Reset timer, or try another cycle. Inoperative timer. • Test timer and replace if inoperative. Motor starting functions inoperative. No start; or

• Refer to Section 7 to check start switch and start windings.

motor hums only. Motor is dead, won’t run. • Refer to Section 7 to check switch and windings. Motor overload protector has cycled. • Wait two or three minutes for overload protector to reset.

If protector cycles repeatedly, refer to Paragraph 9.

Bind in upper or lower motor bearing. • Remove belt and determine if motor shaft will spin.

Replace motor if shaft is locked up.

Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram. Power cord is miswired. • Refer to appropriate wiring diagram for correct wiring.

W003

7. NO AGITATION

POSSIBLE CAUSE TO CORRECT

Inoperative timer. • Test timer and replace if inoperative. Inoperative action switch. • Test switch and replace if inoperative. Motor will not run. • Refer to Section 7 to check switch and windings. Inoperative pressure switch. • Test switch and replace if inoperative. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram. Broken drive belt. • Replace belt. Inoperative transmission assembly. • Replace transmission assembly. Sheared motor pulley roll pin. (Through Serial No.

001113645)

• Remove drive motor and replace roll pin and any other damaged parts.

Drive motor overload protector has cycled. • Refer to Paragraph 9. Bind in pump. • Replace pump. Loading door is open or door switch is inoperative. • Close door or test switch and replace if inoperative.

39201 13

Section 3 Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

8. CONSTANT AGITATION

POSSIBLE CAUSE TO CORRECT

Inoperative timer. Test timer and replace if inoperative. Shorted or incorrect wiring. Refer to appropriate wiring diagram.

Inoperative transmission assembly. Repair or replace transmission assembly.

9. WASHER OVERHEATS, CYCLES ON MOTOR THERMAL PROTECTOR, SWITCH ACTUATOR KICKS IN AND OUT

POSSIBLE CAUSE TO CORRECT

Belt is tacky and does not allow proper slip. Check belt and replace if defective. Belt tension is too great and does not allow proper

Make sure idler spring is properly connected.

slip. Inoperative timer. Test timer and replace if inoperative. Motor switch functions inoperative. Refer to Section 7 to check switch functions. Bind in water pump. Replace pump. Brake pads or brake assembly binding. Free binding pads, or replace pads and brake assembly. Bearings, transmission or motor has locked up and

will not turn.

Check that all these components are able to move freely. Correct binding component.

Incorrect voltage. Contact local utility company, or have a qualified electrician

check power supply.

W003

14 39201

Section 3 Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

10. SLOW SPIN OR NO SPIN

POSSIBLE CAUSE TO CORRECT

Inoperative timer. • Test timer and replace if inoperative. Loading door is open or door safety switch is

inoperative.

• Close loading door, or test switch and replace if inoperative.

Bind in water pump. • Replace pump. Broken or worn drive belt. • Replace belt. Motor will not run. • Refer to “Motor Test” Section 7 to check switch and

windings.

Sheared motor pulley roll pin. (Through Serial No.

001113645)

• Remove drive motor and appropriately replace roll pin and any other damaged parts.

Motor overload protector has cycled. • Wait two or three minutes for overload protector to reset.

If protector cycles repeatedly, refer to Paragraph 9.

No clearance between brake pads and discs. • Replace pads and brake assembly. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram. Inoperative transmission assembly. • Repair or replace the transmission assembly.

W003

11. CONSTANT SPIN

POSSIBLE CAUSE TO CORRECT

Inoperative timer. Test timer and replace if inoperative. Washtub does not stop spinning within seven

Replace brake pads and brake assembly.

seconds after loading door is opened. Excessive wear on brake pads, or missing brake

Replace brake pads and brake assembly.

pads. Shorted or incorrect wiring. Refer to appropriate wiring diagram.

39201 15

Section 3 Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

12. WASHER STOPS IN CYCLE; QUITS AFTER A COUPLE LOADS; IS INTERMITTENT

POSSIBLE CAUSE TO CORRECT

Belt is tacky and does not allow proper slip. • Check belt and replace if defective. Belt tension is too great and does not allow proper

• Make sure idler spring is properly connected.

slip. Inoperative timer. • Test timer and replace if inoperative. Broken, loose or incorrect wiring. • Refer to appropriate wiring diagram. Motor overload protector has cycled. • Wait two or three minutes for overload protector to reset.

If protector cycles repeatedly, refer to Paragraph 9.

Motor switch functions inoperative. • Refer to Section 7 to check switch functions. Brake, transmission or motor has locked up and will

• Check that all these components are able to move freely.

not turn.

W003

13. WASHER IS LOCKED UP OR BINDING

POSSIBLE CAUSE TO CORRECT

Excessive belt tension. • Replace belt and/or idler spring. Bind in upper or lower bearing. • Replace bearing. Bind in water pump. • Replace pump. Bind in transmission. • Repair or replace transmission. Brake pads binding. • Free binding pads, or replace pads. Incorrect voltage. • Contact local utility company, or have a qualified

electrician check power supply.

14. OUTER TUB DOES NOT EMPTY

POSSIBLE CAUSE TO CORRECT

Kinked drain hose. • Straighten hose. Drain hose out of hose retainer clip in back of

cabinet.

• Remove washer front panel and install drain hose into hose retainer clip in back of cabinet.

Inoperative water pump. • Replace pump. Obstruction in outer tub outlet hose. • Remove obstruction.

16 39201

Section 3 Troubleshooting

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

15. EXCESSIVE VIBRATION

POSSIBLE CAUSE TO CORRECT

Unbalanced load in tub. • Stop washer, redistribute load, then restart washer. Broken, or disconnected module spring(s). • Connect or replace module spring(s). Washer is not properly leveled. • Adjust leveling legs. Washer is installed on weak, “spongy”, carpeted or

built-up floor. Incorrect or loose cabinet screws. • Replace with correct screws or tighten. Base damaged (washer was dropped). • Replace base assembly. Broken friction ring. • Replace friction ring.

• Relocate washer, or support floor to eliminate weak or “spongy” condition.

W003

16. WATER LEAKING FROM OUTER TUB

POSSIBLE CAUSE TO CORRECT

Leaking water seal in outer tub. • Replace hub and seal kit assembly, Paragraph 37. Hole in outer tub. • Replace outer tub. Pressure hose or accumulator leaking. • Replace pressure hose and/or accumulator. Outer tub cover gasket leaking. • Replace gasket. Obstruction in drain causing water to come over top

• Remove obstruction.

of outer tub cover. Tub-to-pump hose leaking at clamp. • Tighten clamp.

39201 17

Section 4

Grounding

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

17. WALL RECEPTACLE POLARITY CHECK

Refer to Figure 1

GROUND

NEUTRAL

V.A.C.

W011GE3A

NOTE: Have a qualified electrician check polarity of wall receptacle. If a voltage reading is measured other than that illustrated, the qualified electrician should correct the problem.

NEUTRAL

SIDE

ROUND

GROUNDING

PRONG

115±12

V.A.C.

115±12

V.A.C.

W003

Figure 1

18. POWER CORD TO CONTROL HOOD, CONTROL HOOD TO THE CONTROL PANEL FRAME

Refer to Figure 2

GROUND

WIRES

GROUND

WIRES

Figure 2

W489SE3A

39201 19

Section 4 Grounding

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

19. CONTROL HOOD WIRE HARNESS TO TOP LEFT REAR CORNER GUSSET OF CABINET

Refer to Figure 3

GROUND

CORNER

GUSSET

GROUND

SCREW

WIRE

W003

GROUND

WIRES

20. WIRE HARNESS TO MOTOR

Refer to Figure 4

WIRE

HARNESS

CONNECTION

BLOCK

W490SE3A

Figure 3

GROUND

W329SE3C

Figure 4

20 39201

Section 5

Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

IMPORTANT: When reference is made to directions (right or left) in this manual, it is from operator’s position facing front of washer.

21. CONTROL HOOD ASSEMBLY

a. CONTROL PANEL:

(1) Remove two control panel attaching

screws. Refer to Figure 5. Lay assembly forward on a protective pad on cabinet top.

(2) Unplug wire harness quick disconnect

blocks, two ground wires and leads from pressure switch and loading door switch. Refer to Figure 6.

NOTE: Refer to appropriate wiring diagram when reconnecting wire harnesses, ground and switch leads.

PRESSURE

DISCONNECT

BLOCKS

PRESSURE

HOSE

SWITCH

PANEL ATTACHING

SCREW

W491SE1A

Figure 5

DISCONNECT

BLOCKS

GROUND

WIRES

GROUND

INDICATOR

LIGHT

Figure 6

39201 21

WIRES

W489SE3B

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

b. CYCLE SELECTOR OR WASH

TEMPERATURE SWITCH:

(1) Remove two control panel attaching

screws. Refer to Figure 5. Lay assembly forward on protective pad on cabinet top.

(2) Loosen setscrew holding switch knob to

switch shaft. Refer to Figure 7.

(3) Remove knurled nut holding switch to

control panel. Refer to Figure 7.

NOTE: Lockwasher must be between switch and control panel when installing switch. Refer to Figure 7.

WASH

TEMPERATURE

SWITCH

LOCKWASHERS

PANEL

SCREW

W003

(4) Disconnect wires from switch.

NOTE: Refer to appropriate wiring diagram when rewiring switch.

c. INDICATOR LIGHTS

(In Use, Rinse or Spin. Refer to Figure 6):

(1) Remove two control panel attaching

screws. Refer to Figure 5. Lay assembly forward on protective pad on cabinet top.

(2) Disconnect wires from light.

NOTE: Refer to wiring diagram when rewiring light.

(3) Squeeze locking tabs together and pull light

out rear of control panel.

d. PRESSURE SWITCH

(1) Remove two control panel attaching

screws. Refer to Figure 5. Lay assembly forward on protective pad on cabinet top.

(2) Remove two screws holding switch to

cabinet top. Refer to Figure 6.

(3) Pull switch out of control hood far enough

to disconnect pressure hose and wires from switch.

CYCLE

SELECTOR

SWITCH

SETSCREW

KNURLED

NUT

Figure 7

KNOB

W492SE1A

NOTE: Refer to appropriate wiring diagram when rewiring pressure switch.

IMPORTANT: When installing pressure switch, blow air into hose before connecting hose to switch to remove any moisture that may have accumulated in hose.

22 39201

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

e. ELECTRONIC CONTROL

IMPORTANT: Due to the sensitivity of the electronic control, careful handling is required. As a precautionary measure, we recommend using a ground wrist strap when handling the electronic control. Wrist strap, cord and alligator clip are designed to carry away any electrostatic charge from your body and to direct charge to an available ground. By using this static protection device, potential electrostatic discharge problems associated with handling of electronic control will be minimized. Always handle electronic control by its metal edges. If a wrist strap is not available, touch washer while it is plugged in before handling control to dissipate any charge.

NOTE: New control is supplied in a special antistatic wrapping, and protected by anti-static foam. While holding control by its metal edges, remove control from foam and wrapping.

(1) Remove two control panel attaching

screws. Refer to Figure 5. Lay control panel assembly face down on protective padding.

(2) Press in on locking tabs and unplug harness

disconnect blocks from backside of

electronic control assembly. Refer to Figure 8.

NOTE: DO NOT pull on wires. Instead, hold board near appropriate disconnect block and unplug by pulling on disconnect block.

(3) Remove four screws holding electronic

control assembly to backside of control panel. Refer to Figure 8.

(4) Place the old control in the anti-static

wrapping that the new control was supplied in.

(5) While holding new control by its metal

edges, carefully peel off protective plastic coating from front side of control. Then place control in opening of control panel and fasten control down with four screws.

(6) Follow wiring diagram and reconnect wires

to new control.

IMPORTANT: It is important to take care when handling the original control. It must be carefully placed in the anti-static wrapping and anti-static foam which was removed from new control. If control is not wrapped properly, warranty credit will not be issued.

ELECTRONIC

CONTROL

ATTACHING

SCREWS

(2 per side)

W493SE1A

Figure 8

39201 23

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

f. CONTROL PANEL OVERLAY

(Removal):

(1) Remove control panel attaching screws.

Refer to Figure 5. Lay assembly forward on protective pad on cabinet top.

(2) Loosen setscrews holding switch knobs to

switch shafts. Refer to Figure 7.

(3) Remove knurled nuts holding switches to

control panel. Refer to Figure 7.

NOTE: Lockwashers must be between switches and control panel when installing switches. Refer to Figure 7.

(4) Disconnect wires from switches and

indicator lights.

NOTE: Refer to appropriate wiring diagram when rewiring switches and indicator lights.

(5) Remove control panel overlay by peeling it

from control panel frame.

NOTE: Control panel overlay has an adhesive backing.

g. CONTROL PANEL OVERLAY

(Installation):

NOTE: Before removing protective backing from new overlay, check fit of overlay to control panel frame. Switch holes are the locating guides.

(1) Once panel overlay is fitted to the front of

control panel frame, carefully peel protective backing from the left end of panel overlay and press into place.

(2) Remove rest of protective backing from

panel overlay and firmly press overlay into place on control panel frame.

22. TIMER ASSEMBLY

a. TIMER REMOVAL (Metered Models):

(2) Remove timer bracket cap screw. Refer to

Figure 9.

(3) Slide timer and bracket toward rear of

meter case to disengage bracket from shoulder screw. Lift timer and bracket out of meter case through service door opening as far as wires will permit.

NOTE: If only replacing clutch, proceed to step 7.

(4) Disengage wire harness terminal block plug

from timer by pressing in movable locking tabs (located on each side of terminal block plug). Refer to Figure 10. Then pull terminal block plug away from timer.

(5) Disconnect ground wire from terminal on

timer. Refer to Figure 10.

IMPORTANT: To avoid an open circuit, DO NOT pull on terminal block wires when removing block from timer as this could damage wires or terminal crimpings. Before attaching wire harness terminal blocks to timer, be sure all male terminals on timer are straight and are capable of accepting terminals from wire harness terminal blocks.

CAP

SCREW

METER

CASE

TIMER

BRACKET

SHOULDER

SCREW

NOTE: DO NOT attempt to repair timer.

(1) Unlock and remove meter case service

door.

24 39201

Figure 9

W334SE1A

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

IMPORTANT: Be careful not to dislodge or damage two timer motor lead wires while handling timer.

W003

NOTE: To avoid timer damage, do not allow timer to be struck on corners, edges of frame or on timer shaft.

(6) Remove two screws holding timer to timer

bracket. Refer to Figure 10.

(7) Loosen setscrew holding clutch to timer

shaft. Refer to Figure 11.

TIMER

BRACKET

ATTACHING

SCREWS

LOCKING

TABS

GROUND WIRE

TERMINAL

BLOCK PLUG

GROUND

WIRE

W237SE1A

SETSCREW

CLUTCH

W238SE1A

Figure 11

Figure 10

39201 25

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

b. TIMER INSTALLATION (Metered

Models):

(1) Place clutch on timer shaft and tighten

setscrew. Refer to Figure 11.

NOTE: When installing clutch, make sure clutch moves freely after setscrew is tightened.

(2) Attach timer to timer bracket using two

screws. Refer to Figure 10.

(3) Reconnect wire harness terminal block plug

and ground wire to timer.

(4) Carefully place timer and timer bracket

down inside meter case so keyhole slot in bracket fits over the head of shoulder screw. Refer to Figure 9.

(5) After positioning timer bracket over

shoulder screw, slide timer and bracket forward until bottom front of bracket contacts rear of coin vault in meter case. Refer to Figure 9.

(6) While holding timer bracket up against rear

of coin vault, install cap screw and tighten firmly. Refer to Figure 9.

(7) Make sure wire harness is routed along

bottom of meter case so it will not interfere with any moving parts in meter case.

(4) Pull wire harness and blocks through into

timer case; then disconnect timer harness from control hood harness at quick disconnect block.

(5) Remove two screws holding timer to timer

plate. Refer to Figure 12.

(6) Disconnect wires from timer.

NOTE: Refer to appropriate wiring diagram when rewiring timer.

TIMER PLATE

ATTACHING SCREW

TIMER KNOB

SCREWS

TIMER

ATTACHING

SCREW

LOCKWASHER

TIMER

CASE

W239SE1A

c. TIMER REMOVAL (Nonmetered Models):

Figure 12

(1) Loosen two setscrews holding timer knob

to timer shaft. Refer to Figure 12.

(2) Remove four screws and lockwashers

holding timer and plate to timer case. Refer to Figure 12.

NOTE: When reinstalling timer and plate, lockwashers must be between head of screws and timer plate.

(3) Pull timer and plate out of timer case as far

as wires will permit.

NOTE: Disconnect ground wire from ground terminal on timer.

26 39201

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

d. SINGLE COIN DROP REMOVAL

(1) Unlock and open service door.

NOTE: If screw type lock is used, the retainer bracket must be removed from inside meter case.

(2) Disconnect wire harness from coin drawer

switch and disconnect coin drop at disconnect plugs.

(3) Press in on locking tabs of service door

switch and remove switch from bracket on meter case, as shown in Figure 13.

SERVICE

DOOR SWITCH

METER

CASE

LOCKING

TAB

(4) Use a 7/16 inch socket with No. 310P4 1/4

inch Ratchet Extension Tool and remove two locknuts holding coin drop to front of meter case. Refer to Figure 14.

(5) Lift back end of coin drop and pull straight

back until bottom edge of drop’s front face plate falls behind the coin drawer housing.

(6) Carefully lift complete coin drop straight

up and out of meter case.

e. SINGLE COIN DROP INSTALLATION

(1) Reverse removal procedures for

installation.

1/4"

RATCHET

NO. 310P4

1/4" RATCHET

EXTENSION

TOOL

7/16"

SOCKET

LOCKNUT

SWITCH

BRACKET

W408SE1B

FRONT

Figure 13

OF METER

CASE

W485SE1A

Figure 14

39201 27

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

f. DUAL COIN DROP REMOVAL

(1) Unlock and open service door.

NOTE: If screw type lock is used, the retainer bracket must be removed from inside meter case.

(2) Disconnect wire harness from coin drawer

switch and disconnect coin drops at disconnect plugs.

SERVICE DOOR

SWITCH

BRACKET

(3) Press in on locking tabs of service door

switch and remove switch from bracket on meter case, as shown in Figure 15.

(4) Remove wire harness from multiplier.

Refer to Figure 16. Move wire harness out of the way.

(5) Remove multiplier from inside meter case.

Refer to Figure 16.

NOTE: Multiplier is held inside meter case by two Velcro strips.

METER

CASE

W408SE3A

Figure 15

28 39201

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

(6) Press in on locking tabs of coin drawer

switch and remove switch through front of meter case. Refer to Figure 16.

7/16" SOCKET

LOCKNUT

COIN DRAWER

SWITCH

FRONT OF METER

CASE

(7) Use a 7/16 inch socket with No. 310P4 1-4

inch Ratchet Extension Tool and remove two locknuts holding coin drop to front of meter case. Refer to Figure 16.

1/4" RATCHET

1/4" RATCHET EXTENSION

VELCRO

STRIPS

NO. 310P4

TOOL

MULTIPLIER

W494SE3A

Figure 16

(8) Lift back end of coin drop and pull straight

back until bottom edge of the drop’s front face plate falls behind the coin drawer housing. Refer to Figure 17.

BACK END

OF COIN DROP

COIN DROP

FRONT

FACE PLATE

COIN DRAWER

HOUSING

Figure 17

39201 29

W410SE3A

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

(9) Lift up back end of coin drop until the two

coin-return stops slide down past the coin drawer housing, as shown in Figure 18.

COIN DROP

FRONT

FACE PLATE

COIN-RETURN

STOPS

(10) While holding back end of drop, allow

drop’s front face plate to rest on bottom of meter case. Refer to Figure 18.

BACK END

OF COIN DROP

METER

CASE

COIN DRAWER HOUSING

W411SE3A

Figure 18

30 39201

Section 5 Service Procedures

WARNING

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

• Disconnect electric power to the washer before servicing.

• Never start the washer with any guards/panels removed.

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

reconnected to ensure that the washer is properly grounded.

W003

(11) Carefully lift complete coin drop straight

up and out of meter case. Refer to Figure 19.

COIN

DROP

COIN DROP

FRONT

FACE PLATE

SERVICE

DOOR

OPENING

NOTE: When lifting drop out of meter case, tip drop slightly so front face plate clears service door opening. Refer to Figure 19.

METER

CASE

W412SE3A

Figure 19

39201 31

+ 69 hidden pages

Alliance Laundry Systems HWT020LA, HWT020WC, HWT020WA, HWT020LC, HWT020LM Service Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Table of Contents

Model Identification