Alliance Laundry Systems AT170FG - 8 Burner Repeatedly Cycles off on High Limit Thermostat - Gas Models; 9 Steam Valve or Gas Burner Does Not Shut-Off; 10 Clothes Do Not Dry

M413487 13
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
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8. BURNER REPEATEDLY CYCLES OFF ON HIGH LIMIT THERMOSTAT - GAS MODELS
9. STEAM VALVE OR GAS BURNER DOES NOT SHUT-OFF
10. CLOTHES DO NOT DRY
POSSIBLE CAUSE TO CORRECT
External exhaust system is longer than
recommended or inadequate make-up air.
• Refer to Installation Manual (supplied with tumbler) for
exhaust and make-up air requirements.
Clogged lint screen. • Remove screen and clean. Lint screen and compartment
should be cleaned after every eight hour shift.
Lint in internal tumbler ductwork. • Disassemble tumbler ductwork and clean.
Lint in external exhaust system. • Disassemble exhaust system and clean.
High limit thermostat cycling at too low a
temperature.
• Replace thermostat.
Lint door panel not closed properly. • Remove lint door panel - place lint door panel back on
tumbler (ensuring a tight fit).
POSSIBLE CAUSE TO CORRECT
Impurities on gas valve or steam valve seat,
preventing valve from closing.
• Disassemble and clean valve or replace valve.
Inoperative drying timer. • Replace timer.
Incorrect wiring. • Refer to wiring diagram located on back of tumbler or in
literature packet.
POSSIBLE CAUSE TO CORRECT
Heat source inoperative. • Refer to Paragraph 17.
Too much water in articles being dried. • Remove excess water.
Clothes load too large. • Remove part of load. 170 pounds dry weight (AHAM
cotton load) is a maximum load.
Improper or inadequate exhaust system. • Refer to Installation Manual (supplied with tumbler) for
exhaust requirements.
Heat source shuts-off prematurely. • Refer to Paragraph 16.
Drying timer improperly set. • Set selector for higher setting.
Incorrect voltage. • Refer to Installation Manual (supplied with tumbler) for
electrical requirements.
Inadequate make-up air. • Refer to Installation Manual (supplied with tumbler) for
make-up air requirements.
Improper fan rotation. • May be due to improper wiring resulting in low air flow.
Refer to Installation Manual.