5.3 Diagnosing
(troubleshooting)
Problem
Possible Causes
Suggested Repairs
Power not on or has been disconnected.
Reconnect and turn on power.
Door switch misaligned & doesn't get activated by door pin.
Tighten screw (where door pin engages door switch) to realign front shield with door. Do
not overtighten screw.
Door pin broken, so door switch doesn't get activated.
Replace entire door.
Control module failed.
Check control module output voltages. Replace module if faulty.
Dryer won't run
Door switch or wire harness failed.
Check door switch & wire harness resistances. Replace faulty part.
Motor overheated.
Wait for motor to cool down and thermal protector to reset.
Broken belt switch tripped.
Reset broken belt switch.
Motor control or motor failed.
Check motor control voltage & motor resistance. Replace faulty part.
Lint screen hi-limit (thermal cutout) tripped.
Clean lint screen and clean lint and other debris from front shield, then replace hi-limit. Also
check exhaust duct length & # of elbows.
Gas valve failed.
Check voltages to and resistances of parts. Replace faulty parts.
Heater hi-limit (thermal cutout) tripped.
Correct what caused overheating, then reset hi-limit.
Burner won't work
Wire harness failed.
Run resistance or continuity checks to track down broken wire or connector. Replace failed
wire harness.
Motor overheated.
Wait for motor to cool down and thermal protector to reset.
Broken belt switch tripped.
Reset broken belt switch.
Motor control or motor failed.
Check motor control voltage & motor resistance. Replace faulty part.
Motor won't work
Lint screen hi-limit (thermal cutout) tripped.
Clean lint screen and clean lint and other debris from front shield, then replace hi-limit. Also
check exhaust duct length & # of elbows.
Wire harness failed.
Run resistance or continuity checks to track down broken wire or connector. Replace failed
wire harness.
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