Heating Element Does Not Heat Or Burner Does Not Ignite - ALLIANCE AT050L Service Manual

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.

5. HEATING ELEMENT DOES NOT HEAT OR BURNER DOES NOT IGNITE

POSSIBLE CAUSE
Improper or inadequate exhaust or make-up air
system.
Blown fuses or tripped circuit breakers.
Drying timer not selected or inoperative.
"No Heat" selected on control.
Inoperative control relay.
Inoperative thermistor.
Electric Models:
Inoperative heating elements or contactors.
Gas Models:
Insufficient gas supply.
Gas Models:
Incorrect orifices.
Gas Models:
Inoperative gas valve coils.
Gas Models: Inoperative igniter.
Gas Models: Inoperative igniter control.
70269301 © Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
WARNING
TO CORRECT
• Refer to the Installation Manual for exhaust and make-
up air requirements.
• Check fuses or circuit breakers.
• Set drying timer or replace if necessary.
• Select temperature option.
• Test relay and replace if inoperative.
• Test thermistor by removing harness from thermistor
terminals. Check resistance across terminals, should read
approximately 50,000 Ohms at 77°F. Resistance should
decrease with a temperature increase. Replace thermistor
if inoperative.
• Check heat contactors and elements. Replace if necessary.
• Open partially closed gas shut-off valve, or correct low
gas pressure. Check inlet pressure and compare to
pressure specified on serial plate. If pressure cannot be
obtained, contact gas supplier.
• Tumbler is equipped for type of gas specified on serial
plate at 0-2,000 feet altitude. Refer to Installation
Manual.
• Test coils and replace if available as a service part,
otherwise replace valve.
• Test igniter and replace if inoperative.
• Test igniter control and replace if inoperative.
Section 3 Troubleshooting
W002
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