ALLIANCE AE7133 Service Manual Page 14

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  • TROUBLESHOOTING
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Section 3 Troubleshooting
To reduce the risk of electric shock, fire, explosion, serious injury or death:
Disconnect electric power to the dryer(s) before servicing.
Close gas shut-off valve to gas dryer(s) before servicing.
Never start the dryer(s) with any guards/panels removed.
Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the dryer is properly grounded.
W001R1
WARNING
© Copyright, Alliance Laundry Systems LLC DO NOT COPY or TRANSMIT
9. HEATER ASSEMBLY OR BURNER SHUTS OFF PREMATURELY
10. HEATER ASSEMBLY OR BURNER REPEATEDLY CYCLES OFF ON LIMIT THERMOSTAT
POSSIBLE CAUSE TO CORRECT
Improper or inadequate exhaust system. Weather
hood flapper restricted.
Refer to Installation Instructions (supplied with dryer)
for exhaust requirements.
Gas Models: Insufficient gas supply. Check gas shut-off valve in dryer and main gas line valve.
Open partially closed gas shut-off valve, or correct low
pressure.
Gas Models: Dryer not properly equipped for type
of gas being used.
Refer to Gas Burner Conversion Procedures in this
manual to convert burner.
Gas Models: Improperly adjusted burner flame. Adjust flame, Paragraph 61.
Cycling off on limit thermostat. Momentarily connect a jumper wire across thermostat
terminals. If heater assembly heats or burner ignites when
jumper wire is connected, refer to Paragraph 10.
Gas models: Sensor contact closing prematurely.
Burner flame improperly adjusted.
Replace sensor or adjust burner flame. Refer to
Paragraph 61.
*Inoperative cycling thermostat. Test thermostat and replace if inoperative.
*Inoperative timer. Test timer and replace if inoperative.
Broken, loose, or incorrect wiring. Refer to appropriate wiring diagram.
Inoperative electronic control. Refer to Section 8 to check out the electronic control
operation.
POSSIBLE CAUSE TO CORRECT
External exhaust system longer than recommended. Refer to Installation Instructions (supplied with dryer)
for exhaust system requirements.
Clogged lint filter. Remove and clean lint filter.
Lint in internal dryer ductwork. Disassemble dryer ductwork and clean.
Lint in external exhaust system. Disassemble exhaust system and clean.
Hinged damper on exhaust system weather hood
not free to open.
Free hinged damper or replace weather hood
*Limit thermostat cycling at too low a temperature. Replace thermostat, Paragraph 47.
Air leak around loading door. (Door not sealing due
to damaged seal or inoperative door catch.)
Replace seal or catch.
Inoperative thermistor. Test thermistor and replace if inoperative.
Air leak at blower seal. Check and replace seal if necessary.
*Mechanical Timer Models Only
Electronic Control Models Only
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