Om Models: No Fan Motor Rotation With Cycle Selected And Start Pressed - ALLIANCE AT050L Service Manual

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.

25. OM MODELS: NO FAN MOTOR ROTATION WITH CYCLE SELECTED AND START PRESSED

208-240 Volt/60 Hertz/3 Phase and 480 Volt/60 Hertz/3 Phase Electric Reversing Models
208-240 Volt/60 Hertz/3 Phase and 460-480 Volt/60 Hertz/3 Phase Gas Reversing and Steam Models
Step Problem
1 Is there voltage across the primary of the transformer?
If yes, continue to next step.
2 Is there 24 VAC across terminals 2 & 3 of the transformer
secondary? If yes, continue to next step.
3 Is there voltage to the COM of the door switch?
If yes, continue to next step.
4 Is there voltage to the N.O. terminal of the door switch?
If yes, continue to next step.
5 Is there voltage into lint panel switch? If yes, continue to
next step.
6 Is there voltage out of lint panel switch? If yes, continue to
next step.
7 Is there voltage to H2-8 of micro control? If yes, continue
to next step.
8 Is there voltage to H2-7 of micro control? If yes, continue
to next step.
9 Is there voltage across the coil of the M contactor? If yes,
continue to next step.
10 Is there voltage to L1, L2 and L3 of the M contactor?
If yes, continue to next step.
11 Is there voltage toT1, T2 and T3 of the M contactor?
If yes, continue to next step.
12 Is there voltage across L1, L2 and L3 of the motor?
If yes, continue to next step.
13 Unit operational.
26
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
WARNING
If No, then
Correct wiring to transformer. Check fuses.
Replace transformer.
Correct wiring to door switch. Check fuse.
Check door switch for proper operation. Replace if
necessary.
Correct wiring between door switch and lint panel switch.
If actuated replace inoperative switch. If not actuated
adjust switch as needed.
Correct wiring between micro control and door switch.
Replace micro control.
Correct the wiring to the M contactor.
Correct wiring between M contactor and supply voltage.
Replace M contactor.
Correct wiring between motor and M contactor.
W002
70269301