Motor; Impellor; Lint Screen - ADC AD-333 Service Manual

To Replace V-Belts
1. Loosen tension on V-belts, so that they can easily be rolled
off pulleys.
2. Replace V-belts.
3. Retighten V-belts and adjust tension alignment per
previous instructions.

Motor

To Replace Motor
1. Discontinue power to dryer.
2. Remove drive belt.
3. Disconnect wiring harness from motor.
4. Remove nuts and washers holding the motor mount to
the base of the dryer and pull motor mount away.
5. Remove the two left-hand nuts on the motor shaft retaining
the impellor. Work the impellor free from the motor shaft
by means of a puller to prevent damage to the motor shaft.
6. Remove the bolts holding the motor and install new motor.
7. Remove pulley from old motor and install on new motor.
8. Align motor with impellor face in place with the motor
mount at no less than 3/16" clearance.
9. Reassemble in the reverse of the above procedure.

Impellor

NOTE: Follow steps 1 through 5 and 8 in "To Replace
Motor."

Lint Screen

To Replace Lint Screen
1. Slide lint screen out 3/4 of the way, reach through the
access door and flip the hinge on the left side of the screen
up.
2. Slide lint screen out along the lint coop track.
3. Reverse procedure for installing new lint screen.
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Troubleshooting _______________________
The information provided will help isolate the most probable
component(s) associated with the difficulty described. The
experienced technician realizes, however, that a loose
connection or broken or shorted wire may be at fault where
electrical components are concerned – not necessarily the
suspect component itself.
ELECTRICAL PARTS SHOULD ALWAYS BE CHECKED FOR
FAILURE BEFORE BEING RETURNED TO THE FACTORY.
The information provided should not be misconstrued as a
device for use by an untrained person in making repairs. Only
properly licensed technicians should service the equipment.
OBSERVE ALL SAFETY PRECAUTIONS DISPLAYED ON
THE EQUIPMENT OR SPECIFIED IN THIS MANUAL WHILE
MAKING REPAIRS.
A. No display on computer...
1. Open circuit breaker switch or blown fuse.
2. Bad wiring connection.
3. Faulty microprocessor controller (computer).
B. Computer will not accept touchpad entries...
1. Touchpad ribbon is not plugged into computer
securely.
2. Touchpad is defective.
3. Faulty microprocessor controller (computer).
C. Dryer will not start, but computer display indicators are
on...
1. Failed contactor.
2. Failed microprocessor controller (computer).
3. Failed motor.
D. Drive motor runs, burner is on, but tumbler will not turn...
1. Broken, damaged or loose V-belt.
2. Belts are contaminated (oil, grease, etc.).
3. Loose or broken pulley.
E. Drive motor runs, computer display heat indicator is on,
but there is no heat...
1. Lint coop automatic safety thermostat (160° F [71°
C]) has failed.
2. Sail switch is out of adjustment, has failed, or sail
switch damper is not closing due to back pressure
created by a restriction in the exhaust system.
3. Failed burner hi-limit (330° F [166° C] for gas models)
safety thermostat.
4. Failed ignitor/flame-probe assembly or probe is
misadjusted.
5. Failed ignition DSI module.
6. Failed gas valve.
7. Failed microprocessor controller (computer).
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