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46 American Dryer Corp. 450260-1
Excessive Noise And Vibration______
Dryer is not leveled properly.
Impellor (fan/blower) out of balance.
Excessive lint buildup on impellor (fan/blower); check
air jet.
Failed impellor (fan/blower).
Loose motor mount.
Failed idler bearings or basket (tumbler) bearings.
V-belt(s) either too tight or too loose.
Basket (tumbler) drive wheels are worn or are loose.
Setscrews of basket (tumbler) drive shaft bearings are
loose.
Failed motor bearing.
Drive wheel is loose.
Failed drive wheel.
Dryer Will Not Tilt ____________________
Tilt To Load
Correct door signals are not present.
Door open to tilt up.
Door closed to tilt level.
Defective proximity switch.
No (external) compressed air to pneumatic switches; 80
psi (5.51 bar) required (11 cf/hr [0.31 cm/hr]).
Lint drawer is open.
Tilt To Unload
Correct door signals are not present.
Door open to tilt down.
Door closed to tilt level.
Defective proximity switch.
No (external) compressed air to pneumatic switches, 80
psi (5.51 bar) required (11 cf/hr [0.31 cm/hr]).
Lint drawer is open.
Microprocessor Controller
(Computer) Display Reads Rotation
Fault _________________________________
Rotational sensor circuit failure: fault
somewhere in the basket (tumbler)
rotation or circuit.
Basket (tumbler) is not rotating.
Broken basket (tumbler) drive belts.
Failure in drive motor circuit.
Faulty rotation sensor.
Broken wire or connection between rotation sensor and
microprocessor controller (computer) display board.
Failure in rotational sensor circuit or magnet missing or
gap too large.
Basket (tumbler) rotation below 12 RPMs.
Microprocessor Controller
(Computer) Reads Exhaust High
Temp Fault __________________________
Possible overheating condition; microprocessor controller
(computer) display board has sensed a temperature which
has exceeded 225º F (107º C).
Exhaust High Fault Temp will display until the stop key has
been pressed. A cycle cannot be started until the temperature
is below 220º F (104º C).
Dryer Operates But Is Taking Too
Long To Dry __________________________
Exhaust ductwork run is too long or is undersized (back
pressure cannot exceed 0.5 inches water column [W.C.]
- 1.24 mb).
Restriction in ductwork: check duct from the dryer all the
way to the outdoors.
Low or inconsistent gas pressure (for Gas Models only).
Insufficient make-up air.
Poor air and gas mixture at burner - yellow or poor flame
pattern: adjust gas burner air adjustment shutters (for
Gas Models only).
Lint drawer or screen is not being cleaned on a regular
basis or often enough.
Extractors (washer) is not performing properly. Leaving
excessive moisture in the clothes.
Sail switch is fluttering: restriction in exhaust (for Gas
Models only).
Failed microprocessor controller (computer): temperature
calibration is inaccurate.
Failed microprocessor temperature sensor (probe).
B factor too low (Auto Cycle only).
Steam damper system is not functioning properly (for
Steam Models only).
Steam damper sticking closed.
Leak in pneumatic system.
Undersized load, dryer requires a minimum load size of
approximately 125 lbs (57 kg) for maximum drying
efficiency.