Alliance Laundry Systems BU120L, BU120N, CA120L, CA120N, CT120L Troubleshooting Manual

Drying Tumblers

TMB1268C

120 Pound Capacity 170 Pound Capacity

Models Starting Serial No. 0907003062

Refer to Page 7 for Model Numbers

Troubleshooting

www.comlaundry.com

Part No. 70422201

December 2009

Table of

Content s

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

Locating an Authorized Service Person................................................5

Safety Warnings and Decals..................................................................5

Safety Precautions for Servicing Tumblers...........................................5

Section 2 – Introduction..........................................................................6

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

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

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

How a Tumbler Works..........................................................................9

Section 3 – Troubleshooting..................................................................10

1. Motor Does Not Start..................................................................11

2. Motor Overload Protector Cycles Repeatedly............................12

3. Motor Runs But Cylinder Does Not Turn...................................13

4. Motor Does Not Stop..................................................................14

5. Gas Burner Does Not Ignite........................................................15

6. Burner Ignites and Goes Out Repeatedly....................................16

7. Burner Shuts off Prematurely .....................................................17

8. Burner Repeatedly Cycles Off On High Limit Thermostat........18

9. Steam Valve or Burner Does Not Shut-off.................................19

10. Clothes Do Not Dry ....................................................................20

11. Tumbler Overheating..................................................................21

12. Burners Not Burning Properly - Gas Models..............................22

13. Loading Door Opens During Operation......................................23

14. Tumbler Runs But No Steam To Coils - Steam Models.............24

15. Water In Steam Line - Steam Models.........................................25

16. Tumbler Will Not Start, Time On Drying Timer,

Door Closed ................................................................................26

17. Motor Runs But Will Not Heat...................................................29

18. Cylinder Turns, But Will Not Heat.............................................30

Section 4 – Adjustments........................................................................32

19. Main Gas Burner Air Inlet Shutters (All Gas Models)...............32

20. Airflow Switch............................................................................33

21. Loading Door Strike....................................................................33

22. Cylinder Belt Tension.................................................................33

23. Cylinder Clearance......................................................................34

24. Drive Belt Tension......................................................................37

25. Fan Belt Tension.........................................................................37

Section 5 – Hybrid Timer Control Troubleshooting..........................39

26. Control Has No Display..............................................................40

27. Display Flashes “dr” With Door Closed.....................................42

28. Motor Will Not Start/Run...........................................................44

29. Unit Will Not Heat – Gas............................................................46

30. Error Codes.................................................................................49

the expressed written consent of the publisher.

70422201 1

Section 6 – On Premise Micro Control (RM) Troubleshooting ........50

31. Control Has No Display..............................................................51

32. Door Open Indicator ...................................................................53

33. Motor Will Not Start/Run...........................................................56

34. Unit Will Not Heat – Gas/Steam ................................................58

35. Error Codes.................................................................................61

2 70422201

Section 1

Danger indicates an imminently hazardous situation that, if not avoided, will cause severe personal injury or death.

DANGER

Warning indicates a hazardous situation that, if not avoided, could cause severe personal injury or death.

WARNING

Caution indicates a hazardous situation that, if not avoided, may cause minor or moderate personal injury or property damage.

CAUTION

• 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 unless you understand and have the skills to carry out the servicing.

• 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.

W006R2

•

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.

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

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.

70422201 3

Safety Information

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

• Disconnect electric power to the tumbler before servicing.

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

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

W240

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 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

CAUTION

IMPORTANT INFORMATION: During the lifetime of a tumbler, it may require service. The information contained in this manual was written and is intended for use by qualified service technicians who are familiar with the safety procedures required in the repair of a tumbler, and who are equipped with the proper tools and testing equipment.

NOTE: The WARNING and IMPORTANT instructions appearing in this manual are not meant to cover all possible conditions and situations that may occur. It must be understood that common sense, caution and carefulness are factors which CANNOT be built into this tumbler. These factors MUST BE supplied by the person(s) installing, maintaining or operating the tumbler.

Always contact your dealer, distributor, service agent or the manufacturer on any problems or conditions you do not understand.

4 70422201

Safety Information

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 warranty expires, Alliance Laundry Systems also recommends contacting an authorized technician and using authorized factory parts.

Safety Warnings and Decals

SAFETY WARNINGS and decals have been provided in key locations to remind you of important precautions for the safe operation and maintenance of your tumbler. Please take the time to review these warnings before proceeding with service work.

All decals have been designed and applied to withstand washing and cleaning. Decals should be checked periodically to be sure they have not been damaged, removed, or painted. Refer to the Parts Manual for ordering replacement decals.

Safety Precautions for Servicing Tumblers

• Disconnect electrical service.

• Shut off supply gas valve before servicing gas

components.

• Access panel MUST be reinstalled after inspection or servicing of tumbler is completed.

• Use a non-corrosive leak detecting compound to check all pipe connections for gas leaks. DO NOT USE AN OPEN FLAME TO CHECK FOR GAS LEAKS!

• Belt guard MUST be reinstalled after inspection or servicing of tumbler is completed.

• Contactor box cover MUST be reinstalled after inspection or servicing of electric and/or reversing tumbler is completed.

• Loading door switch MUST be operational before putting tumbler into service.

• Junction box cover MUST be reinstalled after inspection or servicing of tumbler is completed.

70422201 5

Section 2

Introduction

Model Identification

Information in this manual is applicable to these models:

Gas Steam/Thermal Oil

HU120L HU120N IT120L IT120N KA120L KA120N KT120L KT120N KU120L KU120N LA120L LA120N LT120L LT120N LU120L LU120N PA120L PA120N PT120L PT120N PU120L PU120N

120

Pound

BA120L BA120N BT120L BT120N BU120L BU120N CA120L CA120N CT120L CT120N CU120L CU120N GA120L GA120N GT120L GT120N GU120L GU120N HA120L HA120N

HT120L HT120N

SA120L SA120N ST120L ST120N SU120L SU120N UA120L UA120N UT120L UT120N UU120L UU120N XT120L XT120N XU120L XU120N YT120L YT120N

BT120S BT120T BU120S BU120T CT120S CT120T CU120S CU120T GT120S GT120T GU120S GU120T HT120S HT120T HU120S HU120T IT120S IT120T KT120S KT120T KU120S KU120T LT120S

LT120T LU120S LU120T PT120S PT120T PU120S PU120T

ST120S

ST120T SU120S SU120T UT120S UT120T UU120S UU120T XT120S XT120T XU120S XU120T YT120S YT120T YU120S YU120T

6 70422201

170

Pound

BA170L BA170N BT170L BT170N BU170L BU170N CA170L CA170N CT170L CT170N CU170L CU170N GA170L GA170N GT170L GT170N GU170L GU170N HA170L HA170N HT170L HT170N

Gas Steam/Thermal Oil

HU170L HU170N IT170L IT170N KA170L KA170N KT170L KT170N KU170L KU170N LA170L LA170N LT170L LT170N LU170L LU170N PA170L PA170N PT170L

PT170N PU170L PU170N

SA170L SA170N ST170L ST170N SU170L SU170N UA170L UA170N UT170L UT170N UU170L UU170N XT170L XT170N XU170L XU170N YT170L YT170N

BT170S BT170T BU170S BU170T CT170S CT170T CU170S CU170T GT170S GT170T GU170S GU170T HT170S HT170T HU170S HU170T IT170S IT170T KT170S KT170T KU170S KU170T

Introduction

LT170S LT170T LU170S LU170T PT170S PT170T PU170S PU170T ST170S ST170T SU170S SU170T UT170S UT170T UU170S UU170T XT170S XT170T XU170S XU170T YT170S YT170T

Includes models with the following control suffixes:

R3 – reversing DX4 OPL RQ – reversing dual digital timer RD – reversing DMP OPL RM – reversing OPL micro

70422201 7

Introduction

TMB2288N

120 Pound

Junction

Box

Cover

Serial

Plate

Serial

Plate

Junction

Box

Cover

170 Pound

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.

8 70422201

How a Tumbler Works

1

3

Introduction

A tumbler uses heated air to dry loads of laundry. ① When the motor is started, the exhaust fan pulls

room temperature air in through the air intake at the rear of the tumbler and over the heat source (burner flame for gas, heating element for

2

electric, and coil for steam).

② The heated air moves into the cylinder , where it is

circulated through the wet load by the tumbling action of the cylinder.

③ The air then passes throug h the lint filter, exhaust

fan, and is vented to the outdoors.

TMB2347S

70422201 9

Section 3

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

• Disconnect electric power to the tumbler before servicing.

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

• Close steam valve to steam tumbler before servicing.

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

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

W002

WARNING

Troubleshooting

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

10 70422201

1. Motor Does Not Start

TMB2360S

Motor does

not start

Is electrical power

off, has circuit

breaker tripped or

has control fuse

blown?

Check service

to tumbler. Check primary and secondary

fuses.

Is transformer

inoperative?

Replace

transformer.

Is loading door open or is door

switch

inoperative?

Close door or

test switch and

replace if

inoperative.

Is lint panel

switch not

closing?

Test lint panel

switch, replace

if inoperative.

Are trunnion

bearings binding?

Replace trunnion

bearings.

Is there

broken, loose

or incorrect

wiring?

Refer to wiring

diagram

located on

back of tumbler

or in literature

packet.

Ye s

No

Ye s

No

Ye s

No

Ye s

No

Ye s

Are idler bearings binding?

Replace

bearings.

Is motor

inoperative?

Have motor

tested and

replace if

inoperative.

Ye s

No

Ye s

No

TMB2360S

Troubleshooting

70422201 11

Troubleshooting

2. Motor Overload Protector Cycles Repeatedly

Motor overload

protector

cycles

repeatedly

Is voltage incorrect?

No

Yes

Refer to the

Installation

Manual for

electrical

requirements.

Is clothes

load too

large?

No

Is clothes

cylinder

binding?

No

Is wiring

inadequate?

No

Has lint

built up?

Yes

Remove part of

load.

Check cylinder

for binding.

Refer to

Adjustments

Section for

cylinder

adjustment.

Check with an

electrician to

ensure that

wiring is

adequate.

Clean lint

accumulation

on and around

motor.

Is there broken,

loose or

incorrect wiring?

12 70422201

No

Yes

Refer to wiring

diagram

located inside

contactor box.

TMB2361S

3. Motor Runs But Cylinder Does Not Turn

Motor runs but

cylinder does

not turn

Troubleshooting

Is motor

drive pulley

loose?

No

Are cylinder

belts broken

or loose?

No

Is drive belt

broken or

loose?

Ye s

Tighten drive

pulley bushing

screws.

Replace or

adjust belts.

Replace or adjust belt.

Is cylinder

binding?

70422201 13

No

Ye s

Check cylinder for

binding. Refer to

Adjustments Section

for proper cylinder

adjustment.

TMB1919S

Troubleshooting

Motor does not

stop

Is door switch

or lint panel

switch

inoperative?

Test switches and replace if

inoperative.

Is motor

contactor

inoperative?

Test motor

contactor and

replace if

inoperative.

TMB2362S

Yes

No

Yes

Is wiring

incorrect?

Refer to wiring

diagram located on

back of tumbler or

in literature packet.

Yes

No

4. Motor Does Not Stop

14 70422201

5. Gas Burner Does Not Ignite

TMB2363S

Troubleshooting

Gas burner

does not ignite

Is exhaust

system

inadequate?

No

Is

thermostat

inoperative?

No

Is gas

supply

insufficient?

No

Refer to the

Yes

Installation Manual for

exhaust system

requirements.

Yes

Test thermostat

and replace if

inoperative.

Open partially closed gas

shut-off valve or correct low

gas pressure. Check

Yes

manifold pressure and

adjust to pressure specified

on serial plate. If pressure

cannot be obtained, have

gas supplier check main

pressure.

Is there lint

buildup?

No

Is make-up

air or

ductwork

inadequate?

No

Is airflow

switch

inoperative?

No

Clean lint

compartment after

every eight-hour

Yes

shift. Check back

draft damper for lint

accumulation.

Check ductwork for

lint build-up.

Refer to

Installation

Manual to ensure

Yes

that ductwork and

make-up air

openings are sized

properly.

Test switch and

Yes

replace if

inoperative.

Are orifices

incorrect?

No

Are gas valve

coils

inoperative?

No

Tumbler is equipped for type of gas specified on

Yes

serial plate. If orifices

are different from that

specified on serial

plate, obtain and install

proper orifices.

Test coils and

Yes

replace if

inoperative.

Is there

broken, loose

or incorrect

wiring?

No

Is there

improper fan

rotation?

Yes

Refer to wiring

diagram located on

back of tumbler or

in literature packet.

May be due to

improper wiring

resulting in low

airflow. Refer to

Installation

Manual.

TMB2363S

70422201 15

Troubleshooting

Burner ignites

and goes out

repeatedly

Is gas pressure

insufficient?

Check gas supply

and pressure. Low

flame will not

maintain sensor

conductivity.

Are burner ports

plugged?

Check burner tubes

for build-up.

Is exhaust system or

make-up air

inadequate?

Refer to

Installation

Manual for

exhaust and

make-up air

requirements.

Is high limit or cabinet

limit thermostat

inoperative?

Test thermostat

and replace if

inoperative.

TMB1922S

Are orifices

improper?

Tumbler is equipped for type of

gas specified on serial plate. If

orifices are different from that

specified on serial plate, obtain

and install proper orifices.

Is flame recognition

circuit improper?

Replace high voltage lead.

Replace igniter.

Replace ignition control

module.

Yes

No

Yes

No

Yes

No

Yes

No

Yes

No

Yes

6. Burner Ignites and Goes Out Repeatedly

16 70422201

7. Burner Shuts off Prematurely

Burner shuts

off prematurely

Is there improper or

inadequate exhaust and/or

make-up air?

Refer to Installation

Manual for exhaust

and make-up air

requirements.

Is tumbler not properly

equipped for type of gas

used or altitude?

Tumbler is equipped for type of

gas specified on serial plate. If

not properly equipped for gas

type and altitude, obtain and

install correct components.

Is burner flame

improperly adjusted?

Refer to Adjustments Section

for burner flame adjustment.

Is high limit thermostat

cycling off?

Refer to Paragraph 8.

Ye s

No

Ye s

No

Ye s

No

Ye s

No

TMB2364S

Is fan rotation improper?

May be due to improper

wiring resulting in low

airflow. Refer to

Installation Manual..

Are gas valve coils inoperative?

Test coils and replace if

inoperative.

Ye s

No

Ye s

Troubleshooting

70422201 17

Alliance Laundry Systems BU120L, BU120N, CA120L, CA120N, CT120L Troubleshooting Manual

Specifications and Main Features

Frequently Asked Questions

User Manual