Will Not Dry; Will Not Shut Off - Maytag 111990" Automatic Dryers Service Manual

WILL NOT DRY
Dryer won't heat (motor runs).
ELECTRIC MODELS
• Blown fuse or tripped circuit breaker.
• Open heating element.
• Hi-limit thermostat.
• Regulating thermostat.
• Temperature selector switch.
• Timer.
• Cycle selector switch (where used).
• Drive motor start switch.
Improper Drying -- Clothes Wrinkled --
Harsh -- Taking too long
• Lint filter is clean.
• Restriction in exhaust.
• Exhaust hood door stuck.
• Exhaust too long.
• Poor make-up air.
• Incorrect drum speed. Adjust motor
pulley or wrong motor pulley.
• Blower impeller bound.
• Be sure element or gas valve cycles
on and off.
• Shorted heating element - electric
dryers only.
• Customer ove'tloading dryer.
• Check clothing labels for fabric
content.
WILL NOT SHUT OFF
Time Dry Models
• Timer motor.
• Timer.
AUTO DRY MODELS
• Set timer for time dry. Check voltage
across timer motor. If timer will not
advance, replace timer.
• When valve or element cycles off,
should have power to timer motor, if
not, proceed with next check.
• Dryer cycling on hi-limit thermostat.
Check following.
• Lint filter clean.
• Restriction in exhaust.
• Exhaust hood door stuck.
• Exhaust too long.
• Regulating thermostat.
• Customer is overloading dryer.
ELECTRONIC CONTROL MODELS
The electronic control and timer are
used to complete the drying cycle and
cool-down period for these dryer
models. The dryer starts out with the
drive motor running, the timer motor
running, the heat cycling and the elec-
tronic control disabled. As the timer
advances to a certain point in the cycle,
CAUTION - - - - - - - - - - - - - - - - - - - - - - - - - ,
Always disconnect power supply before making any continuity checks or resist-
ance readings.
ED/GD401 1090 SECTION 2. ELECTRICAL - MECHANICAL TROUBLESHOOTING
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