Alliance Laundry Systems BWNBX2PP303AW01 Istruzioni operative

Troubleshooting

Commercial Topload Washers

Refer to Page 7 for Model Numbers

TLW12C_SVG

Original Instructions

Keep These Instructions for Future Reference.

CAUTION: Read the instructions before using the machine.

(If this machine changes ownership, this manual must accompany machine.)

www.alliancelaundry.com Part No. 204591EN

August 2018

Table of Contents

Safety Information..................................................................................5

Locating an Authorized Service Person.............................................................6

Model Identification............................................................................... 7

Introduction........................................................................................... 8

Customer Service............................................................................................8

Serial Plate Location....................................................................................... 8

Theory of Operation........................................................................................9

General Troubleshooting.......................................................................11

To Enter Factory Test.................................................................................... 11

To Exit Factory Test...................................................................................... 11

Clicking Noise During Operation on NEWLY Installed Units........................... 13

Troubleshooting Coin Drop............................................................................13

Non-Electronic Coin Drops........................................................................ 13

Electronic Coin Drops................................................................................14

Troubleshooting Flowcharts..................................................................17

No Hot Water............................................................................................... 18

No Cold Water..............................................................................................19

No Warm Water............................................................................................ 20

Pressure Sensor Error.................................................................................... 21

Water Fill Does Not Stop At Proper Level.......................................................22

Motor Does Not Run.....................................................................................24

No Agitation.................................................................................................26

Constant Agitation........................................................................................ 27

Washer Overheats, Cycles On Motor Thermal Protector, Switch Actuator Kicks In

And Out................................................................................................... 28

Slow Spin Or No Spin................................................................................... 29

Washer Will Not Spin - Low Speed.................................................................30

Washer Will Not Spin - High Speed................................................................32

Constant Spin............................................................................................... 34

Washer Stops In Cycle, Quits After A Couple Loads, Is Intermittent..................35

Washer Is Locked Up Or Binding................................................................... 36

Outer Tub Does Not Empty............................................................................37

Excessive Vibration.......................................................................................38

Water Leaking From Outer Tub......................................................................40

written consent of the publisher.

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3 Part No. 204591EN

Troubleshooting Electronic Control.......................................................41

Error Codes ................................................................................................. 41

No Visible Display on Control....................................................................... 44

Coins Ignored When Entered......................................................................... 46

Washer Will Not Fill (Mixing Valve Diagnostic)..............................................48

Washer Over Fills......................................................................................... 50

No Agitation - Low Speed............................................................................. 52

No Agitation - High Speed.............................................................................54

No Water Flow............................................................................................. 56

Adjustments......................................................................................... 57

Leveling Legs...............................................................................................57

Belt............................................................................................................. 57

Cleaning Non-Electronic Coin Drop............................................................... 57

Cleaning Electronic Coin Drop.......................................................................59

Coin Drops with New-Style Spring............................................................. 59

Motor Test Procedure........................................................................... 63

Cycle Sequence Chart........................................................................... 64

Keys............................................................................................................ 64

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4 Part No. 204591EN

Safety Information

Precautionary statements (“DANGER,” “WARNING,” and

“CAUTION”), followed by specific instructions, are found in this

manual and on machine decals. These precautions are intended

for the personal safety of the operator, user, servicer, and those

maintaining the machine.

DANGER

Indicates an imminently hazardous situation that, if

not avoided, will cause severe personal injury or

death.

WARNING

Indicates a hazardous situation that, if not avoided,

could cause severe personal injury or death.

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 in-

form the reader of specific procedures where minor

machine damage will occur if the procedure is not fol-

lowed.

NOTE: The word “NOTE” is used to communicate in-

stallation, operation, maintenance or servicing informa-

tion 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 instruc-

tions 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 recom-

mended or published in this Service Manual and

unless you understand and have the skills to car-

ry out the servicing.

• Whenever ground wires are removed during serv-

icing, 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.

W006R2

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 re-

moved.

• Whenever ground wires are removed during serv-

icing, these ground wires must be reconnected to

ensure that the washer is properly grounded.

W003

WARNING

Repairs that are made to your products by unquali-

fied persons can result in hazards due to improper

assembly or adjustments subjecting you, or the inex-

perienced person making such repairs, to the risk of

serious injury, electrical shock, or death.

W007

Safety Information

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5 Part No. 204591EN

CAUTION

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 im-

proper service and/or service procedures.

W008

NOTE: The WARNINGS and IMPORTANT INSTRUC-

TIONS 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 man-

ufacturer about any problems or conditions you do not under-

stand.

Locating an Authorized Service Person

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 war-

ranty expires, Alliance Laundry Systems also recommends con-

tacting an authorized technician and using authorized factory

parts.

Safety Information

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6 Part No. 204591EN

Model Identification

Information in this manual is applicable to these washer models:

BWNBX2PP303AW01 SWNBC2SP115TW02

HWNBC2PP115TQ01 SWNBX2SP113FW01

HWNBC2PP115TW01 SWNBX2SP113JW01

HWNBD2SP115CW01 SWNBX2SP115TQ02

HWNBE2SP115CW01 SWNBX2SP115TW02

HWNBX2SP113FW01 SWNBX2SP123DW01

HWNBX2SP115CW01 SWNBX2SP303AW01

HWNBX2SP123DW01 SWNBX2SP303NQ22

HWNBX2SP543DW01 SWNBX2SP303NW22

HWNBY2PP115TW01 SWNBX2SP543DW01

HWNBY2SP115CW01 SWNBY2SP115TW01

NWNBX2SP303NW22 TWNBX2SP303NW22

Model Identification

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7 Part No. 204591EN

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.

Serial Plate Location

When calling or writing about your product, be sure to mention

model and serial numbers. Model and serial numbers are located

on Serial Plate as shown.

TLW12C_SVG1

1. Serial Plate

Figure 1

Introduction

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8 Part No. 204591EN

Theory of Operation

TLW451S_SVG

1. Front End Control

2. Pressure Sensor (Located inside control hood)

3. Agitator

4. Outer Tub

5. Pump

6. Motor

7. Output Board

8. Transmission

9. Washtub

10. Mixing Valve

Figure 2

Introduction

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9 Part No. 204591EN

The cycle begins with a wash fill. The water temperature is deter-

mined by the temperature selected. 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 un-

til it is great enough to trip the pressure sensor at the selected wa-

ter level. The pressure sensor trip then causes the wash fill to stop

and wash agitation to begin. However, the lid must be closed for

the washer to fill, 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 out-

side of the drive belt.

During agitation, the motor runs in the counterclockwise direc-

tion. The spring tension on the idler pulley applies the tension re-

quired to reduce the slack on the drive belt and maintain maxi-

mum 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 counterclock-

wise 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 trans-

mission’s rack and pinion gear design produces a 210 degree agi-

tation stroke at the output shaft of the transmission which drives

the agitator. The brake assembly remains locked during the agita-

tion mode since no pressure is applied to it by the transmission

drive pulley.

After the wash agitation is completed, the control 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 roll-

er clutch locks onto the shaft causing the entire transmission as-

sembly to turn. None of the gears in the transmission are operat-

ing at this time. The hub of the washtub is splined to the trans-

mission tube and rotates with the transmission assembly. The

centrifugal force created by the spinning washtub causes water to

be extracted from the clothes.

The clothes are then rinsed by water spraying onto them while

the load is spinning. This water is forced through the clothes by

the centrifugal acceleration. The resulting rinse water is immedi-

ately extracted. Following rinse spray, a final spin extracts the re-

maining rinse water from the clothes preparing them for the dry-

er.

Introduction

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10 Part No. 204591EN

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