Alliance Laundry Systems 120 User manual

www.comlaundry.com
Troubleshooting
Part No. 70410601
August 2007
Drying Tumblers
120 Pound Capacity
170 Pound Capacity
Refer to Page 5 for Model Numbers
T021C
LOW
AIR FLOW
LOAD
READY
NON
REV
REV
TEMPERATURE
LOW
MEDIUM
HIGH
COOLING DRYING
PUSH
TO
START
10
5
0
15
0
10
20
30
40
50
60
COOLING DRYING
PUSH
TO
START
10
5
0
15
0
10
20
30
40
50
60

© Copyright 2007, Alliance Laundry Systems LLC
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.
70410601 1
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Table of
Contents
Section 1 – Safety Information ...............................................................2
Locating An Authorized Service Person ...............................................3
Section 2 – Introduction..........................................................................4
Model Identification ..............................................................................4
Customer Service...................................................................................5
Serial Plate Location..............................................................................5
Safety Warnings and Decals..................................................................6
Safety Precautions for Servicing Tumblers...........................................6
Section 3 – Troubleshooting....................................................................7
1. Motor Does Not Start....................................................................8
2. Motor Overload Protector Cycles Repeatedly ..............................9
3. Motor Runs But Cylinder Does Not Turn...................................10
4. Motor Does Not Stop..................................................................11
5. Gas Burner Does Not Ignite........................................................12
6. Burner Ignites and Goes Out Repeatedly....................................14
7. Burner Shuts OFF Prematurely...................................................15
8. Burner Repeatedly Cycles Off on High Limit Thermostat.........16
9. Steam Valve or Burner Does Not Shut Off.................................17
10. Clothes Do Not Dry ....................................................................18
11. Tumbler Overheating ..................................................................19
12. Burner Not Burning Properly......................................................20
13. Loading Door Opens During Operation......................................21
14. Tumbler Runs But No Steam to Coils – Steam Models .............22
15. Water In Steam Line – Steam Models ........................................23
16. Tumbler Will Not Start, Time On Drying Timer, Door Closed .24
17. Motor Runs But Will Not Heat...................................................26
18. Cylinder Turns, But Will Not Heat.............................................27
Section 4 – Adjustments........................................................................29
19. Drive Belt Tension......................................................................29
20. Cylinder Belt Tension.................................................................30
21. Fan Belt Tension .........................................................................30
22. Cylinder Clearance......................................................................31

270410601
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Section 1
Safety Information
Throughout this manual and on machine decals, you will find precautionary statements (i.e. “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.
aDANGER
Danger indicates the presence of a hazard that will cause severe personal injury, death or substantial property
damage if the danger is ignored.
aWARNING
Warning indicates the presence of a hazard that can cause severe personal injury, death or substantial property
damage if the warning is ignored.
aCAUTION
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 (i.e. “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.
• 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

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Safety Information
IMPORTANT INFORMATION: During the lifetime of your 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 your 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.
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.
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
:

470410601
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Section 2
Introduction
Model Identification
Information in this manual is applicable to these models:
Gas Steam/Thermal Oil
AT120FG
DC120FG
DT120FG
JC120FG
JT120FG
SC120FG
ST120FG
AT170FG
DC170FG
DT170FG
JC170FG
JT170FG
SC170FG
ST170FG
AT120CSH
DC120CSH
DT120CSH
JC120CSH
JT120CSH
SC120AT
SC120CSH
ST120AT
ST120CSH
AT170CSH
DC170CSH
DT170CSH
JC170CSH
JT170CSH
SC170CSH
ST170CSH

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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.
TMB1497S
Serial
Plate
Junction
Box
Cover
TMB1499S
Serial
Plate
Junction
Box
Cover
Wiring
Diagram
TMB1497S
170 Pound Models
120 Pound Models

670410601
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Introduction
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.

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Section 3
Troubleshooting
IMPORTANT: Refer to wiring diagram for aid in testing tumbler components.
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

870410601
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Troubleshooting
1. Motor Does Not Start
Motor Does
Not Start
Is the
electrical power
off or circuit
breaker fuse
blown?
No
Is the
loading door
switch not
closed or switch
inoperative?
Is the
door switch
improperly
adjusted?
No
Check power
supply, or replace
fuses.
Yes
Close door, panel
or test switch and
replace if
inoperative.
Yes
Refer to
Installation
Manual
for door
switch adjustment.
Yes
Is the start
circuit not
complete?
Yes Press start switch
or test switch
and replace if
inoperative.
Is the motor
inoperative?
Yes Have motor tested
and replace if
inoperative.
Refer to wiring
diagram.
Yes
Is the
transformer
inoperative?
Yes Test and replace
if necessary.
Is the
motor relay
inoperative?
Yes Test relay and replace
if inoperative.
Is there
broken, loose,
or incorrect
wiring?
No
No
Are
trunnion
bearings
binding?
Yes Replace
trunnion
bearings.
No
TMB2115S
No
No
No
Are
idler bearings
binding?
Replace
bearings.
No
Yes
Is timer
improperly
set?
Turn drying timer
clockwise to
desired setting.
No
Yes
Is timer
inoperative?
Test timer and
replace if
inoperative.
No
Yes

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Troubleshooting
2. Motor Overload Protector Cycles Repeatedly
TMB1904S
Motor Overload
Protector
Cycles
Repeatedly
Is voltage
correct?
Refer to
Installation
Manual
for
electrical
requirements.
Yes
Is clothes
load too
large?
No
Remove part of
load.
Yes
Is clothes
cylinder
binding?
Check cylinder
for binding.
Is wiring
adequate?
No
Yes
No
Check with
local power
company to
ensure that
wiring is
adequate.
Yes
Is make-up
air adequate?
Refer to
Installation
Manual
for
make-up air
requirements.
No
Yes
Is there lint
buildup around
tumbler or poor
maintenance?
Clean lint
accumulation
on and around
the motors.
No
Yes
Is there
broken, loose
or incorrect
wiring?
Refer to wiring
diagram.
No
Yes

10 70410601
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Troubleshooting
3. Motor Runs But Cylinder Does Not Turn
Motor Runs
But Cylinder
Does Not Turn
Is cylinder
belt broken
or loose?
Replace or
adjust cylinder
belt.
Is cylinder
binding?
Check cylinder
for binding.
Yes
No
Yes
TMB2116S
Is motor
drive pulley
loose?
Yes Tighten drive
pulley bushing
screws.
No
Is drive belt
broken or
loose?
Replace or
adjust drive
belt.
No
Yes

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Troubleshooting
4. Motor Does Not Stop
Motor Does
Not Stop
Is the door
switch not
working
properly?
Test switches and
replace if inoperative.
Refer to
Installation
Manual
for proper
switch adjustment.
Is wiring
incorrect?
Refer to wiring
diagram.
Is timer
inoperative?
Test timer and
replace if
inoperative.
Is motor
contactor
inoperative?
Test motor
contactor and
replace if
inoperative.
Yes
Yes
No
Yes
No
Yes
TMB2117S
No

12 70410601
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Troubleshooting
5. Gas Burner Does Not Ignite
Burner Does
Not Ignite
Is there
an improper or
inadequate exhaust
system?
No
Are there
blown fuses or
tripped circuit breakers
in external electric
supply line?
Is
drying timer
not selected or
inoperative?
No
Refer to
Installation
Manual
for
exhaust system
requirements.
Yes
Check fuses or
circuit breaker.
Yes
Set drying timer
or replace if
inoperative.
Yes
Is
thermostat
inoperative?
Yes Test thermostat
and replace if
inoperative.
Is
there an
insufficient gas
supply?
Yes
Open partially closed gas
shut-off valve, or correct low
gas pressure. Check
manifold pressure and
adjust to pressure specified
on serial plate. If pressure
cannot be obtained, have
your local gas company
check main gas pressure.
No
Is there
inadequate
ductwork and
make-up
air?
No
Tumbler is equipped
for type of gas
specified on serial
plate. If orifices are
different from that
specified on serial
plate, obtain and
install correct orifices.
Yes
Clean lint
compartment. Check
damper for lint
accumulation. Check
ductwork for lint
buildup.
Yes
Refer to Installation
Manual
to ensure
that ductwork and
make-up air
openings are sized
accurately.
Yes
Is there
lint
buildup?
Are the
orifices
incorrect?
TMB2118S-a
No
Continued on
next page
No
No
Is the
airflow switch
inoperative?
Yes Test switch
and replace
if inoperative.
No
Is airflow
switch out of
adjustment?
Refer to Installation
Manual
for airflow
switch adjustment.
No
Yes
No

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Troubleshooting
5. Gas Burner Does Not Ignite (continued)
Continued from
previous page
Is
there an
inoperative
igniter?
Isthe igniter
control
inoperative?
No
Test igniter
and replace if
inoperative.
Yes
Test igniter control
and replace if
inoperative.
Yes
TMB2118S-b
Is
there broken,
loose or incorrect
wiring?
YesRefer to
wiring diagram.
Isthe lint
door panel
not closed
properly?
Yes
Open lint door panel,
place lint door and
panel back on
tumbler (ensuring a
tight fit).
No
No
Are valve coils
inoperative?
Check valve coils
and replace if
necessary.
No
Yes
Isfan rotation
improper?
May be due to
improper wiring
resulting in low
air flow. Refer to
Installation
Manual.
No
Yes

14 70410601
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Troubleshooting
6. Burner Ignites and Goes Out Repeatedly
Burner Ignites and
Goes Out Repeatedly
Is there
insufficient
gas pressure?
Check gas supply
and pressure.
Low flame will
not maintain
sensor conductivity.
Yes
Are the
burner ports
plugged?
Yes Check burner tubes
for build-up.
Is the
exhaust system
improper or
inadequate?
Yes Refer to
Installation Manual
for exhaust system
equirements.
No
Does
tumbler have
improper
orifices?
Yes
Tumbler is
equipped for type
of gas specified on
serial plate. If
orifices are different
from that specified
on serial plate,
obtain and install
correct orifices.
No
Is
there inadequate
make-up air?
Yes Refer to
Installation Manual
for make-up air
requirements.
TMB2119S
Is high limit
or cabinet limit
thermostat
inoperative?
Test thermostat
and replace if
inoperative.
No
Yes
No
No

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Troubleshooting
7. Burner Shuts OFF Prematurely
Burner shutsoff
prematurely
Isthere
improper or
inadequate
exhaust and/or
make-up air?
Refer to
Installation Manual
for exhaust and
make-up air
requirements.
Isthere
insufficient
gas supply?
Open partially
closed gas shut-off
valve or correct low
pressure.
Istumbler
not properly
equipped for
type of gas
used?
Tumbler is
equipped
for type of gas
specified on serial
plate. If orificesare
different from that
specified on serial
plate, obtain and
install proper
orifices.
Isburner
flame
improperly
adjusted?
Refer to
Installation Manual
for burner flame
adjustment.
Ishigh limit
thermostat
cycling off?
Refer to
Paragraph 8.
Isthere
broken, loose
or incorrect
wiring?
Refer to
wiring diagram
located inside
contactor box.
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
TMB2120S
Isthere
Improper fan
rotation?
May be due to
improper wiring
resulting in low
air flow. Refer
to Installation
Manual.
No
Yes

16 70410601
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Troubleshooting
8. Burner Repeatedly Cycles Off on High Limit Thermostat
Burner repeatedly
cycles off on high
limit thermostat
Is external
exhaust system
longer than
recommended or is
there inadequate
make-up air?
Refer to
Installation
Manual
for
exhaust and
make-up air
requirements.
Is lint screen
clogged?
Remove screen
and clean. Lint
screen and
compartment
should be cleaned
after every eight
hour shift.
Is there lint
in tumbler
ducts?
Clean tumbler
ducts.
Is there lint
in external
exhaust
system?
Disassemble
exhaust
system and
clean.
Is high limit
thermostat
cycling at too
low a
temperature?
Replace
thermostat.
Is lint door
panel not
closed
properly?
Remove lint door
panel, place lint
door panel back on
tumbler (ensuring a
tight fit).
Is there
improper fan
rotation?
May be due to
improper wiring
resulting in low air
flow. Refer to
Installation
Manual.
3 Phase power:
reverse L1 and L2
incoming power,
check for proper
rotation.
TMB2122S
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes
No
Yes

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Troubleshooting
9. Steam Valve or Burner Does Not Shut Off
Steam Valve or
Burner Does
Not Shut Off
Are there
impurities on gas
or steam valve
seat, preventing
valve from
closing?
Replace gas
valve or
disassemble
and clean
steam valve.
Is wiring
correct?
Refer to wiring
diagram.
Is drying timer
inoperative?
Replace
timer.
Yes
No
Yes
No
Yes
TMB2121S

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Troubleshooting
10. Clothes Do Not Dry
Clothes Do Not
Dry
Is there
enough heating
time allocated for
the load?
No
Is the
heat source
inoperative?
Start cycle again
with enough time to
dry load.
Yes
Refer to
Flowchart 17 .
Yes
Remove excess
water.
Is
the clothes
load too
large?
Yes
Remove part of
load. Maximum
load is 120 pound
dry weight (cotton
load) for 120
pound Tumbler,
etc.
Is the
exhaust system
improper or
inadequate?
Yes Refer to
Installation
Manual
for exhaust
system equirements.
No
Is
the voltage
incorrect?
No
Refer to
Flowchart 17 .
Yes
Set selector
for higher
setting.
Yes
Refer to Installation
Manual
for electrical
requirements.
Yes
Is there
inadequate
make-up
air?
Yes Refer to
Installation
Manual
for make-up
air requirements.
Is there
improper fan
rotation?
Yes
May be due to
improper wiring
resulting in low air
flow. Refer to
Installation
Manual
.
Is
the drying
selector
improperly
set?
Does heat
source shut off
prematurely?
No
No
No
TMB2123S
No
Is there
too much water in
articles being
dried?
No
No
Yes