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70269301
Section 3 Troubleshooting
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
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
21. OM AND RM MODELS: NO START WITH CYCLE SELECTED, START BUTTON PRESSED AND
DOOR CLOSED
120 Volt/60 Hertz/1 Phase Gas and Steam Nonreversing
208-240 Volt/60 Hertz/1 or 3 Phase Steam Nonreversing
208-240 Volt/60 Hertz/3 Phase Electric Nonreversing
460-480 Volt/60 Hertz/3 Phase Gas, Electric and Steam Nonreversing
Step Problem
If No, then
1
Is there voltage to the primary of the transformer? If yes,
continue to next step.
Correct wiring to transformer primary. Check fuses.
2
Is there 24 VAC across terminals 2 & 3 of transformer
secondary? If yes, continue to next step.
Replace transformer.
3
Is there voltage to the COM terminal of the door switch?
If yes, continue to next step.
Correct wiring between door switch and transformer.
Check fuse.
4
Is there voltage to the N.O. terminal of the door switch? If
yes, continue to next step.
Check door switch for proper operation. Replace if
necessary.
5
Is there voltage to the COM terminal of the lint panel
switch? If yes, continue to next step.
Correct wiring between lint panel switch and loading door
switch.
6
Is there voltage to the N.O. terminal of the lint panel
switch? If yes, continue to next step.
Check lint panel switch for proper operation. Replace if
necessary.
7
Is there voltage to terminal H2-8 on the micro control? If
yes, continue to next step.
Correct wiring between micro control and lint panel
switch.
8
Is there voltage at terminal H2-7 on the micro control? If
yes, continue to next step.
Replace micro control.
9
Is there voltage across the coil of motor relay? If yes,
continue to next step.
Correct wiring between motor relay and micro control.
10
Is there voltage to the input of the motor relay? If yes,
continue to next step.
Correct wiring between motor relay and supply voltage.
11
Is there voltage to the output of the motor relay? If yes,
continue to next step.
Replace motor relay.
12
Does the motor operate? If yes, continue to next step.
Replace motor.
13
Unit operational.