Alliance Laundry Systems BWNBX2PP303AW01 Operating instructions

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
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All rights reserved. No part of the contents of this book may be reproduced or transmitted in any form or by any means without the expressed
written consent of the publisher.
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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 [phone] for the name and address of
the nearest authorized parts distributor.
For technical assistance, call [phone].
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
1. Serial Plate
Figure 1
Introduction
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8 Part No. 204591EN

Theory of Operation
TLW451S_SVG
1
2
3
4
5
6
7
8
9
10
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