Alliance Laundry Systems Drying Tumblers none User manual

Troubleshooting
www.comlaundry.com
Drying Tumblers
Refer to Page 3 for Model Identification
T478C
START
25
C
HIGH
TEMP
MED
TEMP
LOW
TEMP
NO
HEAT
123
SELECT
TEMP
INSERT
COIN
PUSH
START
123
SELECT
TEMP
INSERT
COIN
PUSH
START
START
25
C
HIGH
TEMP
MED
TEMP
LOW
TEMP
NO
HEAT
T477C
T478C T477C
Part No. 70172201
November 2001
Keep These Instructions for Future Reference.
(If this machine changes ownership, this manual must accompany machine.)

© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
© Copyright 2001, 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.
70172201 1
Table of
Contents
Introduction......................................................................................... 3
Model Identification ............................................................................. 3
Theory of Operation of Instant Electronic Ignition .............................. 3
Safety Information.............................................................................. 5
Cannot Perform Infrared (IR) Communication.............................. 7
Coins Ignored When Entered ............................................................ 9
Control Display ................................................................................... 11
Door Open Light “On” ......................................................................... 11
No Visible Display – OPL Microprocessor Models............................. 12
No Visible Display – Power On ........................................................... 13
Will Not Start ...................................................................................... 15
Electric.................................................................................................. 15
Manual Timer................................................................................... 15
Rotary Coin Drop............................................................................. 16
Gas ........................................................................................................ 18
Manual Timer................................................................................... 18
Rotary Coin Drop............................................................................. 19
Steam .................................................................................................... 21
Manual Timer................................................................................... 21
Rotary Coin Drop............................................................................. 22
Will Not Start/Continue Running ..................................................... 25
EDC Control ......................................................................................... 25
OPL Microprocessor Control ............................................................... 28
Will Not Run ....................................................................................... 31
Electric.................................................................................................. 31
Manual Timer................................................................................... 31
Rotary Coin Drop............................................................................. 34
Gas ........................................................................................................ 37
Manual Timer................................................................................... 37
Rotary Coin Drop............................................................................. 39
Steam .................................................................................................... 41
Manual Timer................................................................................... 41
Rotary Coin Drop............................................................................. 43
Will Not Heat....................................................................................... 45
Electric.................................................................................................. 45
Manual Timer................................................................................... 45
Rotary Coin Drop............................................................................. 47
Rotary Coin Drop (with and without time delay board) ................. 49
Electric/Gas........................................................................................... 51
OPL Microprocessor ........................................................................ 51
Gas ........................................................................................................ 54
EDC Models..................................................................................... 54
Manual Timer................................................................................... 56
Rotary Coin Drop............................................................................. 58

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
270172201
Steam .................................................................................................... 60
EDC Models..................................................................................... 60
Manual Timer................................................................................... 62
OPL Microprocessor ........................................................................ 64
Rotary Coin Drop............................................................................. 67

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT 3
70172201
Introduction
Model Identification
Information in this manual is applicable to these tumbler models:
Theory of Operation of Instant
Electronic Ignition
IMPORTANT: The Non-CE Marked Instant
Electronic Ignition system will attempt to light the
gas by sparking for approximately 15 seconds. If
gas ignition does not take place within
approximately 15 seconds, the Instant Electronic
Ignition control will go into safety lockout and the
valve will no longer open until Instant Electronic
Ignition control is reset. To reset Instant Electronic
Ignition control, remove power from control by
opening and closing the tumbler door. If condition
persists, check that the gas shut-off valve is in “on”
position and that the gas service is properly
connected.
If condition persists:
1. Check resistance of high tension lead
(approximately 1000 ohms/inch), and replace if
not within resistance range.
2. Check voltage present at valve.
3. Check that machine is properly grounded.
4. Check the gap between igniter and burner tube
(gap should be 1/4-3/8 inch).
5. Check that burner ports are not blocked or
plugged under the igniter.
Gas Steam/Thermal Oil Electric
25 Pound
(220 Liter)
DC0220SFG
DC0220SRG
DT0220SFG
DT0220SRG
JC0220SFG
JC0220SRG
JT0220SFG
JT0220SRG
SC0220SFG
SC0220SRG
ST0220SFG
ST0220SRG
DC0220SSL
DT0220SSH
DT0220SSL
JC0220SSL
JT0220SSH
JT0220SSL
SC0220SSL
ST0220SSH
ST0220SSL
DC0220SEL
DT0220SEL
JC0220SEL
JT0220SEL
SC0220SEL
ST0220SEL
30 Pound
(270 Liter)
DC0270SFG
DC0270SRG
DT0270SFG
DT0270SRG
JC0270SFG
JC0270SRG
JT0270SFG
JT0270SRG
SC0270SFG
SC0270SRG
ST0270SFG
ST0270SRG
DC0270SSL
DT0270SSH
DT0270SSL
JC0270SSL
JT0270SSH
JT0270SSL
SC0270SSL
ST0270SSH
ST0270SSL
DC0270SEL
DT0270SEL
JC0270SEL
JT0270SEL
SC0270SEL
ST0270SEL
30 Pound
Stacked
(300 Liter)
DC0300DFG
DC0300DRG
DT0300DFG
DT0300DRG
JC0300DFG
JC0300DRG
JT0300DFG
JT0300DRG
NT0300DRG
SC0300DFG
SC0300DRG
ST0300DFG
ST0300DRG
DC0300DSL
DT0300DSH
DT0300DSL
JC0300DSL
JT0300DSH
JT0300DSL
SC0300DSL
ST0300DSH
ST0300DSL
DC0300DEL
DT0300DEL
JC0300DEL
JT0300DEL
SC0300DEL
ST0300DEL
35 Pound
(350 Liter)
AT0350SRG
DC0350SFG
DC0350SRG
DT0350SFG
DT0350SRG
JC0350SFG
JC0350SRG
JT0350SFG
JT0350SRG
SC0350SFG
SC0350SRG
ST0350SFG
ST0350SRG
AT0350SSL
DC0350SSL
DT0350SSH
DT0350SSL
JC0350SSL
JT0350SSH
JT0350SSL
SC0350SSL
ST0350SSH
ST3050SSL
DC0350SEL
DT0350SEL
JC0350SEL
JT0350SEL
SC0350SEL
ST0350SEL

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT 5
70172201
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.
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.
NOTE: The WARNINGS 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.
DANGER indicates the presence of a
hazard that will cause severe personal
injury, death, or substantial property
damage if the danger is ignored.
DANGER
WARNING indicates the presence of a
hazard that can cause severe personal
injury, death, or substantial property
damage if the warning is ignored.
WARNING
CAUTION indicates the presence of a
hazard that will or can cause minor
personal injury or property damage if the
caution is ignored.
CAUTION
Failure to install, maintain, and/or operate
this machine according to manufacturer’s
instructions may result in conditions which
can produce serious injury, death and/or
property damage.
W051
WARNING

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT 7
70172201
Cannot Perform Infrared (IR)
Communication
T027D
Check the following:
- IR communication disabled by
manual programming.
- Is the IR window on the control
covered or blocked.
- if needed, change EDC board.
Check the following:
- low battery on micro wand
- is the IR window covered or
blocked on the control.
- if needed replace the EDC
control
- is the IR cap properly attached
to the micro wand.
Communication
sequence checks
out.
Attempt to
communicate with
the electronic
control from the
micro wand.
Aim micro wand
closer and try again.
Is there a response of
any kind from the
electronic control?
Does the control
respond?
Does the electronic
control display "E:OF"
or "-C-"?
NO
YES
"-C-"
"E:OF"
NO
YES
Single and stacked.
Gas and electric heat.
Single and three phase
supply.
T027D

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70172201
Coins Ignored When Entered
T026D
Does the display on the
EDC control increment
properly?
Is connector H2 firmly
seated in its
receptacle?
Is the 3 pin connector
between coin drop and
control connected
correctly?
Are wires exiting coin
drop optical sensor
cracked or broken?
Exit diagnostic
testing and reset
control. (Prompting
for vend price)
Reconnect and run
diagnostic test
again.
Reconnect and run
diagnostic test
again.
Replace coin drop.
Replace coin drop.
If problem still
exists then replace
the EDC control.
Start coin drop
diagnostic tests.
YES
NO
YES
YES
NO
YES
NO
NO
Single and stacked
units. Gas and electric
heat. Single and three
phase voltage.
T026D

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT 11
70172201
Control Display
Door Open Light “On”
T028D
Is there voltage at
"H4-6 on the EDC
control?
Replace EDC
Control.
Is there power supplied
to the unit?
NO
Is there voltage to input
of primary fuses?
Is there voltage to
output side of the
primary fuses?
Is there voltage across
terminals "1" & "2" of
transformer primary?
Plug unit in and
run it.
Correct wiring
between primary
fuses and power
supply.
Replace primary
fuse(s).
Correct wiring
between primary
fuses and
transformer.
Is there voltage across
terminals "2" & "3" of
transformer
secondary?
Replace
transformer.
Is there voltage at
the input of the
secondary fuse?
Is there voltage to
output side of
secondary fuse?
Correct wiring
between secondary
fuse and
transformer.
Replace secondary
fuse.
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
Is there voltage to
N.O. of door
switch?
With door closed is
there voltage to
COM of door
switch?
Is there voltage to
N.O. of lint drawer
switch?
Is there voltage to
COM of lint drawer
switch with lint
panel closed?
Check for proper
operation replace if
necessary.
Correct wiring
between N.O. on lint
drawer and COM on
door switch.
Correct wiring
between N.O. and
output of secondary
fuse.
Check for proper
function of door
switch replace if
necessary.
Correct wiring
between "H4-6" of
EDC control and
COM of lint drawer
switch.
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Single and stacked
units. Gas and electric
heat. Single and three
phase supply.
Reference voltage
checks to transformer
neutral.
T028D

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Control Display
70172201
12
No Visible Display –OPL Microprocessor Models
T007D
Is there voltage
supplied to the unit?
Is there voltage to the
input side of the
primary fuse(s)?
Is there voltage to the
output side of the
primary fuse(s)?
Is there voltage
to primary side of
the transformer
terminal "1"?
Is there voltage across
"1" & "4" of transformer
secondary?
Is there voltage across
terminals "H3-3" &
"H3-4" on OPL Micro?
Is there voltage across
fuse on OPL Micro?
Connect supply
voltage and run unit.
Correct wiring
between primary
fuse and supply.
Replace primary
fuse.
Correct wiring
between transformer
and primary fuse.
Replace transformer
Correct wiring
between OPL Micro
and transformer
secondary.
Replace OPL Micro.
YES
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
Replace fuse.
Gas, steam
and electric heat.
Single and three
phase supply.
Note: Reference voltage to
supply neutral.
T007D

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Control Display
13
70172201
No Visible Display –Power On
T025D
Is there voltage across
"H4-2 & H4-5" on the
EDC control?
Replace EDC
Control.
Is there power supplied
to the unit?
NO
Is there voltage to input
of primary fuses?
Is there voltage to
output side of the
primary fuses?
Is there voltage across
terminals "1" & "2" of
transformer primary?
Plug unit in and run
it.
Correct wiring
between primary
fuses and power
supply.
Replace primary
fuse(s).
Correct wiring
between primary
fuse and
transformer.
Is there voltage across
terminals "2" & "3" of
transformer
secondary?
Replace
transformer.
Is there voltage at
the input of the
secondary fuse?
Is there voltage to
output side of
secondary fuse?
Correct wiring
between secondary
fuse and
transformer.
Replace secondary
fuse.
Correct wiring
between "H4-2" and
secondary fuse.
YES
NO
NO
NO
NO
NO
NO
NOYES
YES
YES
YES
YES
YES
YES
Single and stacked
units. Gas and electric
heat. Single and three
phase supply.
T025D

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT 15
70172201
Will Not Start
Electric
Manual Timer
T050D
Is there power supply
voltage coming to the
tumbler?
Connect power
and run the cycle.
Is there
voltage at the primary side
of the transformer at
terminals 1 and 2?
NO
YES
NO Change the primary
fuse to the
transformer.
Correct wiring
between power
supply and
transformer.
Still no voltage
YES
there voltage at the
secondary side of the
transformer at terminal
2 and 3?
Replace the
transformer.
NO
YES
Is there voltage to the
output side of the
secondary fuse?
Change the
secondary fuse.
NO NO
Correct the wiring
between the
secondary fuse and
the transformer.
Is there voltage to the
"N.O." terminal of the
door switch?
YES
NO
Correct the wiring
between the door
switch and the
secondary fuse.
YES With door closed Is
there voltage at "COM"
of the door switch?
NO
Check for proper
operation,
replace the door
switch if
necessary.
YES Is there voltage to the
"COM" of the lint panel
switch?
NO
Correct wiring
between lint panel
switch and door
switch.
YES
With lint panel
closed is there votlage to
"N.O." terminal of the
liint panel switch?
NO Replace lint
panel switch.
YES Refer to NO
MOTOR RUN
(run circuit.)
NOTE: White wires are
transformer "neutral"
For stacked units.
Correct wiring
between upper and
lower pocket.
Manual Timer, with and without Time Delay Board, Single and
Stacked units, Single and 3 Phase power supply.
T050D
Is

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Will Not Start
70172201
16
Electric
Rotary Coin Drop (Sheet 1 of 2)
T075D
Coin Drop with and without Time Delay Boards.
Single and Stacked units. Single and 3 phase
power supply.
Is there power supply
voltage coming to the
unit?
Connect power to
the unit and run
cycle.
NO
YES
Is there voltage at the
primary side of the
transformer at terminals
"1" & "2"?
NO
YES
Is the primary
fuse good?
YES
Correct wiring
between transformer
and power supply.
Replace
fuse and
run
machine.
NO
Is there voltage at the
secondary side of the
transformer at terminal
"2" and "3"?
Replace the
transformer.
NO
YES
Is there voltage to the
output side of the
secondary fuse?
Is the
secondary
fuse good?
NO
Replace
fuse and
run
machine.
NO
YES
Correct wiring
between secondary
of transformer and
fuse.
YES
Is there voltage to
"N.C." terminal of
switch "A" on rotary
coin drop?
Note: Reference voltage
to transformer neutral.
(White wire)
Correct wiring
between rotary
coin drop and
secondary fuse.
NO
YES
Is there voltage on the
"COM" terminal of switch
"A"?
Note: The following
checks are made with
the vend price satisfied.
Replace switch "A".
NO
YES
Is there voltage across
coinmeter timer motor?
Correct wiring
between
coinmeter timer
motor and COM
on switch "A".
NO
Does the coinmeter
timer motor
advance?
YES
NO
YES
Replace coinmeter
timer motor.
Correct wiring
between N.O on
door switch and
COM on switch"A".
Is there voltage at
N.O. terminal of the
door switch?
NO
With the door
closed is there
voltage across the
door switch?
Check door switch
for proper operation,
replace if necessary.
Is there voltage to
the N.O. terminal of
the lint panel
switch?
Correct wiring
between N.O. on the
lint panel switch and
COM of door switch.
With the lint
panel closed is there
voltage across the
lint panel switch?
Check lint panel
switch for proper
operation and
replace if necessary.
YES
YES
NO
NO
YES
YES
NO
Is the unit equipped
with time delay
boards?
YES
NO
Continued on next
page at step 1.
Continued on next
page at step 2.
Step 3 continuation.
T075D

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
Will Not Start
17
70172201
Electric
Rotary Coin Drop (Sheet 2 of 2)
T076D
Correct wiring
between "2A" of start
switch and COM of
lint panel switch.
Is there voltage at
"2A" of the start
switch?
Is there voltage at
terminal "7" of the
motor relay?
NO
YES
NO
YES
Correct wiring
between "7" of
motor relay and COM
of lint panel switch.
Refer to NO
MOTOR RUN
(run circuit).
Is there voltage to
"H1-2" on TMR1
board?
STEP 1
Correct wiring
between
"H1-2" and
output of
secondary
fuse.
With vend price
satisfied is there
voltage across "N.C." &
COM of switch "A"?
NO
YES
YES
NO
Replace Switch "A"
Is there voltage across
the timer motor?
Is there voltage across
"H1-6" & "H1-8" of
TMR1?
Correct wiring
between timer
motor and COM on
switch "A"
NO
YES
Correct wiring
between "H1-6" and
COM on switch "A"
Is there voltage across
"H1-2" & "H1-3" of
TMR1"?
NO
YES
Is there voltage to N.O.
of door switch?
Replace TMR1.
YES
NO
Correct wiring
between N.O. of
door switch and
"H1-3" of TMR1.
Continue at step 3
on previous page.
YES
NO
Does Coinmeter Timer
Motor advance?
YES
NO Replace Timer
Motor.
STEP 2
Note: Following tests
are conducted with
vend price satisfied.
Does the unit have
single phase or three
phase power supply?
Single phase
3 phase
Is there voltage at
terminal "14" of the
motor control relay?
Correct wiring to
terminal "14" of
motor control
relay.
Refer to NO
MOTOR RUN (Run
Circuit).
YES
NO
T076D

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Will Not Start
70172201
18
Gas
Manual Timer
T041D
No motor run (start circuit) Manual Tumblers. Single and stacked units
with and without time delay. GAS UNITS
Is there power supply
voltage coming to the
tumbler?
Connect power
and run the cycle.
Is there voltage at the
primary side of the
transformer at
terminals 1 and 2?
NO
YES
NO Change the primary
fuse to the
transformer.
Correct wiring
between power
supply and
transformer.
Still no voltage
YES
Is there voltage at the
secondary side of the
transformer at terminal
2 and 3?
Replace the
transformer.
NO
YES
Is there voltage to the
output side of the
secondary fuse?
Change the
secondary fuse.
NO NO Correct the wiring
between the
secondary fuse and
the transformer.
Is there voltage to the
input side of the door
switch?
YES
NO
Correct the wiring
between the door
switch and the
secondary fuse.
YES Is there voltage to the
output side of the door
switch?
NO
Replace the
door switch.
YES Is there voltage to the
input side of the lint
panel switch?
NO
Correct wiring
between lint panel
switch and door
switch.
YES
Is there voltage to the
output side of the lint
panel switch?
NO Replace lint
panel switch.
YES Refer to NO
MOTOR RUN
(run circuit).
NOTE: White wires are
transformer "neutral"
For stacked units.
Correct wiring
between upper and
lower pocket.
T041D

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Will Not Start
19
70172201
Gas
Rotary Coin Drop (Sheet 1 of 2)
T086D
Single &
Stacked Tumblers
with and without time delay
Gas units.
Is there power supply
voltage coming to the
unit?
Connect power to
the unit and run
cycle.
NO
YES
Is there voltage
at the primary side of the
transformer at terminals
"1" & "2"?
NO
YES
Is the primary
fuse good?
YES
Correct wiring
between transformer
and power supply.
Replace
fuse and
run
machine.
NO
Is there voltage at the
secondary side of the
transformer at terminal
"2" and "3"?
Replace the
transformer.
NO
YES
Is there voltage to the
output side of the
secondary fuse?
Is the
secondary
fuse good?
NO
Replace
fuse and
run
machine.
NO
YES
Correct wiring
between secondary
of transformer and
fuse.
YES
Is there voltage to
"N.C." terminal of
switch "A" on rotary
coin drop?
Note: Reference voltage to
transformer neutral.
(White wire) Correct wiring
between rotary coin
drop and secondary
fuse.
NO
YES
Is there voltage on the
COM terminal of switch
"A"?
Note: The following
checks are made with
the vend price satisfied.
Replace switch "A".
NO
YES
Is there voltage across
coinmeter timer motor?
Correct wiring
between
coinmeter timer
motor and COM
on switch "A".
NO
Does the coinmeter
timer motor
advance?
YES
NO
YES
Replace coinmeter
timer motor.
Correct wiring
between N.O on
door switch and
COM on switch"A".
Is there voltage at
N.O. terminal of the
door switch?
NO
With the door
closed is there
voltage across the
door switch?
Check door switch
for proper operation,
replace if necessary.
Is there voltage to
the N.O. terminal of
the lint panel
switch?
Correct wiring
between N.O. on the
lint panel switch and
COM of door switch.
With the lint
panel closed is there
voltage across the lint
panel switch?
Check lint panel
switch for proper
operation and
replace if necessary.
YES
YES
NO
NO
YES
YES
NO
Is the unit equipped
with time delay
boards?
YES
NO
Continued on next
page at step 1.
Continued on next
page at step 2.
Step 3 continuation.
T086D

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Will Not Start
70172201
20
Gas
Rotary Coin Drop (Sheet 2 of 2)
T087D
Correct wiring
between 2A of start
switch and COM of
lint panel switch.
Is there voltage at
2A of the start
switch?
Is there voltage at
terminal 7 of the
motor relay?
NO
YES
NO
YES
Correct wiring
between 7 of motor
relay and COM of
lint panel switch.
Refer to NO
MOTOR RUN
(run circuit).
Is there voltage to
"H1-2" on TMR1
board?
STEP 1
Correct wiring
between
"H1-2" and
output of
secondary
fuse.
With vend price
satisfied is there
voltage across "N.C." &
COM of switch "A"?
NO
YES
YES
NO
Replace Switch "A"
Is there voltage across
the timer motor?
Is there voltage across
"H1-6" & "H1-8" of
TMR1?
Correct wiring
between timer motor
and COM on switch
"A"
NO
YES
Correct wiring
between "H1-6" and
COM on switch "A"
Is there voltage across
"H1-2" & "H1-3" of
TMR1?
NO
YES
Is there voltage to N.O.
of door switch?
Replace TMR1.
YES
NO
Correct wiring
between N.O. of
door switch and
"H1-3" of TMR1.
Continue at step 3
on previous page.
YES
NO
Does Coinmeter Timer
Motor advance?
YES
NO Replace Timer
Motor.
STEP 2
Note: Following tests
are conducted with
vend price satisfied.
T087D

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Will Not Start
21
70172201
Steam
Manual Timer
T016D
Single and stacked units with and without
time delay boards. Steam Heat.
Is there power supply
voltage coming to the
tumbler?
Connect power
and run the cycle.
Is there voltage at the
primary side of the
transformer at
terminals 1 and 2?
NO
YES
NO Change the primary
fuse to the
transformer
Correct wiring
between power
supply and
transformer.
Still no voltage
YES
Is there voltage at the
secondary side of the
transformer at terminal
2 and 3?
Replace the
transformer.
NO
YES
Is there voltage to the
output side of the
secondary fuse?
Change the
secondary fuse.
NO NO
Correct the wiring
between the
secondary fuse and
the transformer.
Is there voltage to the
N.O. terminal of the
door switch?
YES
NO
Correct the wiring
between the door
switch and the
secondary fuse
YES Is there voltage to the
COM terminal of the
door switch?
NO
Replace the
door switch.
YES Is there voltage to the
COM terminal of the
lint panel switch?
NO
Correct wiring
between lint panel
switch and door
switch.
YES
Is there voltage to the
N.O. terminal of the
lint panel switch?
NO Replace lint
panel switch.
YES Refer to NO
MOTOR RUN
(run circuit) .
NOTE: White wires are
transformer "neutral"
For stacked units.
Correct wiring
between upper and
lower pocket.
T016D

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70172201
22
Steam
Rotary Coin Drop (Sheet 1 of 2)
T062D
Single &
Stacked Tumblers
with and without time delay
Steam units.
Is there power supply
to the unit?
Connect power to
the unit and run
cycle.
NO
YES
Is there voltage
at the primary side of the
transformer at terminals
"1" & "2"?
NO
YES
Is the primary
fuse good?
YES
Correct wiring
between transformer
and power supply.
Replace
fuse and
run
machine.
NO
Is there voltage
at the secondary side of the
transformer at terminal
"2" and "3"?
Replace the
transformer.
NO
YES
Is there voltage to the
output side of the
secondary fuse?
Is the
secondary
fuse good?
NO
Replace
fuse and
run
machine.
NO
YES
Correct wiring
between secondary
of transformer and
fuse.
YES
Is there voltage to
"N.C." terminal of
switch "A" on rotary
coin drop?
Note: Reference voltage to
transformer neutral.
(White wire)
Correct wiring
between rotary coin
drop and secondary
fuse.
NO
YES
Is there voltage on the
COM terminal of switch
"A"?
Note: The following
checks are made with
the vend price satisfied.
Replace switch "A".
NO
YES
Is there voltage across
coinmeter timer motor?
Correct wiring
between
coinmeter timer
motor and COM
on switch "A".
NO
Does the coinmeter
timer motor
advance?
YES
NO
YES
Replace coinmeter
timer motor.
Correct wiring
between N.O on
door switch and
COM on switch"A".
Is there voltage at
N.O. terminal of the
door switch?
NO
With the door
closed is there
voltage across the
door switch?
Check door switch
for proper operation,
replace if necessary.
Is there voltage to
the N.O. terminal of
the lint panel
switch?
Correct wiring
between N.O. on the
lint panel switch and
COM of door switch.
With the lint
panel closed is there
voltage across the
lint panel switch?
Check lint panel
switch for proper
operation and
replace if necessary.
YES
YES
NO
NO
YES
YES
NO
Is the unit equipped
with time delay
boards?
YES
NO
Continued on next
page column 1.
Continued on next
page column 2.
Step 3 continuation.
T062D

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT
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23
70172201
Steam
Rotary Coin Drop (Sheet 2 of 2)
T063D
Correct wiring
between "2A" of
start switch and COM
of lint panel switch.
Is there voltage at
"2A" of the start
switch?
Is there voltage at
terminal "7" of the
motor relay?
NO
YES
NO
YES
Correct wiring
between "7" of
motor relay and COM
of lint panel switch.
Refer to NO
MOTOR RUN
(run circuit).
Is there voltage to
"H1-2" on TMR1
board?
COLUMN 1
Correct wiring
between
"H1-2" and
output of
secondary
fuse.
With vend price
satisfied is there
voltage across "N.C." &
COM of switch "A"?
NO
YES
YES
NO
Replace Switch "A"
Is there voltage across
the timer motor?
Is there voltage across
"H1-6" & "H1-8" of
TMR1?
Correct wiring
between timer motor
and COM on switch
"A"
NO
YES
Correct wiring
between "H1-6" and
COM on switch "A"
Is there voltage across
"H1-2" & "H1-3" of
TMR1"?
NO
YES
Is there voltage to N.O.
of door switch?
Replace TMR1.
YES
NO
Correct wiring
between N.O. of
door switch and
"H1-3" of TMR1.
Continue at step 3
on previous page.
YES
NO
Does Coinmeter Timer
Motor advance?
YES
NO Replace Timer
Motor.
COLUMN 2
Note: Following tests
are conducted with
vend price satisfied.
T063D

© Copyright, Alliance Laundry Systems LLC –DO NOT COPY or TRANSMIT 25
70172201
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EDC Control (Sheet 1 of 3)
T029D
Is there voltage at
"H4-4" on the EDC
control to transformer
neutral?
Is there power supplied
to the unit?
Is there voltage to input
of primary fuse(s)?
Is there voltage to
output side of the
primary fuse(s)?
Is there voltage across
terminals "1" & "2" of
transformer primary?
Plug unit in and run
it.
Correct wiring
between primary
fuse(s) and power
supply.
Replace primary
fuse.
Correct wiring
between primary
fuse and
transformer.
Is there voltage across
terminals "2" & "3" of
transformer
secondary?
Replace
transformer.
Is there voltage at the
input of the secondary
fuse?
Is there voltage to
output side of
secondary fuse?
Correct wiring
between secondary
fuse and
transformer.
Replace secondary
fuse.
NO
NO
YES
YES
Is there voltage to N.O.
of door switch?
With door closed is
there voltage to COM
of door switch?
Is there voltage to N.O.
of lint drawer switch?
Is there voltage to
COM of lint drawer
switch with lint panel
closed?
Check for proper
operation replace if
necessary.
Correct wiring
between N.O. on lint
drawer and COM on
door switch.
Correct wiring
between N.O. and
output of secondary
fuse.
Check for proper
function of door
switch replace if
necessary.
YES
YES
YES
YES
YES
NO
NO
NO
Correct wiring
between "H4-1" and
COM of lint drawer
switch.
Is there voltage at
"H4-1" on the EDC
control board?
YES
Continued on next
page.
Replace EDC
Control.
NO
NO
NO
YES
YES
YES
YES
YES
NO
NO
NO
NO
NO
Note: test conducted with vend
price satisfied and start button
pressed.
Single and stacked
units. Gas, electric and
steam heat. Single and
three phase supply.
T029D