Alliance Laundry Systems LTS99A*N1180 Service Manual Page 20

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  • TROUBLESHOOTING
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18 801803
Section 3 Troubleshooting (Dryer)
To reduce the risk of electric shock, fire, explosion, serious injury or death:
Disconnect all electric power to the machine and accessories before servicing.
Close gas shut-off valve to gas dryer before servicing.
Never start machine with any guards/panels removed.
Whenever ground wires are removed during servicing, these ground wires must be
reconnected to ensure that the machine is properly grounded.
Washer motor not grounded! Disconnect electric power before servicing motor.
W502
WARNING
© Copyright, Alliance Laundry Systems LLC – DO NOT COPY or TRANSMIT
11. DRYER HEATER ASSEMBLY OR BURNER SHUTS OFF PREMATURELY
12. DRYER 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 main gas line shut-off valve.
Open partially closed gas shut-off valve, or correct low
pressure.
Gas Models: Dryer not properly equipped for type
of gas used.
Refer to “Gas Burner Conversion Procedures” supplied in
gas burner conversion kit.
Gas Models: Improperly adjusted burner flame. Adjust flame. Refer to Paragraph 85.
Cycling off on limit thermostat. Momentarily connect a jumper wire across thermostat
terminals. If heater element heats or burner ignites when
jumper wire is connected, refer to Paragraph 12.
Gas models: Sensor contact closing Replace sensor (Paragraph 65, step e) or adjust burner
flame. Refer to Paragraph 85.
Inoperative cycling thermostat. Test thermostat and replace if inoperative.
Inoperative timer. Test timer and replace if inoperative.
Broken, loose, or incorrect wiring. Refer to wiring diagram.
POSSIBLE CAUSE TO CORRECT
External exhaust system longer or providing greater
restriction than recommended.
•Refer to Installation Instructions (supplied with dryer)
for exhaust system requirements.
Use of plastic or thin foil exhaust duct. Replace with rigid or semi-rigid metal exhaust duct.
Clogged lint filter. Clean lint filter.
Lint in internal dryer ductwork. Disassemble dryer ductwork and clean.
Lint or other obstruction in external exhaust system. Disassemble and clean exhaust system.
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. Refer to Paragraph 67.
Air leak around loading door. (Door not sealing due
to damaged seal or inoperative door catch.)
Replace seal or catch.
Air leak at blower seal. Check and replace seal if necessary.
Air leak at cylinder seal(s). Check and replace seal(s) if necessary.
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