32 M411429
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
36. OM MODELS: NO DISPLAY AFTER SELECTING ONE OF THE ON/SELECT KEYS
120 Volt/60 Hertz/1 Phase CG & CSH Nonreversing
208-240 Volt/60 Hertz/1 Phase CG and CSH Nonreversing
208-240 Volt/60 Hertz/3 Phase CG and CSH Reversing/Nonreversing
208-240 Volt/60 Hertz/3 Phase CE Reversing/Nonreversing
460-480 Volt/60 Hertz/3 Phase CG, CE and CSH Reversing/Nonreversing
Step Problem If No, then
1 Is there voltage across the primary of the transformer? If
yes, continue to next step.
Correct wiring between transformer and supply voltage.
Check fuses.
2 Is there 24 VAC across terminals 1 & 4 of transformers
secondary? If yes, continue to next step.
Replace transformer
3 Is there 24 VAC across terminals H3-3 and H3-4 on the
micro control? If yes, continue to next step.
Correct wiring between H3 and transformer. Check fuses.
4 Is there voltage to the input of the fuse on the micro
control? If yes, continue to next step
Replace micro control.
5 Is there voltage to the opposite side of the fuse on the
micro control? If yes, continue to next step.
Check fuse making sure it is not blown. Replace if
necessary.
6 Replace micro control.
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