M412982
15
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
12. BURNERS NOT BURNING PROPERLY - GAS MODELS
13. LOADING DOOR OPENS DURING OPERATION
14. TUMBLER RUNS BUT NO STEAM TO COILS - STEAM MODELS
POSSIBLE CAUSE
TO CORRECT
Burner air shutters incorrectly adjusted.
• Refer to Adjustment Section in this manual for proper
flame adjustment.
Foreign material in burners.
• Disassemble burners and remove obstruction.
Gas pressure too high.
• Check serial plate on back of tumbler for correct gas
pressure.
Incorrect orifices.
• Tumbler is equipped for type of gas specified on serial
plate. If orifices are different from that specified on serial
plate, obtain and install proper orifices.
Restricted or blocked exhaust duct.
• Disassemble and clean exhaust system.
Airflow switch not functioning properly.
• Check adjustment and replace airflow switch if necessary.
Improper fan rotation.
• May be due to improper wiring resulting in low air flow.
Refer to Installation Manual.
POSSIBLE CAUSE
TO CORRECT
Door strike improperly adjusted.
• Refer to Adjustment Section in this manual for door strike
adjustment.
Tumbler improperly leveled.
• Refer to Adjustment Section in this manual for leveling
adjustment.
POSSIBLE CAUSE
TO CORRECT
Shut-off valve closed.
• Check all valves in supply and return lines make sure they
are open.
Blocked steam trap.
• Remove trap and clean. Replace if inoperative.
Inoperative solenoid valve.
• Check operation of solenoid valve.
Incorrect installation of check valve.
• Check for inlet and outlet markings on check valve and
invert if necessary.
Clogged strainer.
• Remove strainer and clean.