ADC AD-78 Clothes Dryer User Manual


 
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ELECTRIC MODELS ...
1. Failed oven contactor/coil.
2. Failed electric heating element(s).
STEAM MODELS ...
1. Air Operated System...
a. No (external) compressed air (80 PSI required) to steam damper solenoid.
b. Failed steam damper pneumatic solenoid.
c. Steam damper stuck in closed position...check for obstruction.
d. Leak in pneumatic system.
e. Failed steam damper air piston.
f. Flow control valve misadjusted.
2. Electrical Mechanical System...
a. Failed electrical mechanical motor.
b. Steam damper stuck in closed position...check for obstruction.
W. Dryer operates but is taking too long to dry...
1. Exhaust duct work run is too long or is undersized...back pressure cannot exceed 0.3 inches water
column (W.C.).
2. Restriction in duct work ...
a. Dryer back draft damper is sticking partially closed.
b. Restriction/obstruction in duct work ...
1) Check duct work from the dryer all the way to the outdoors.
3. Insufficient make-up air.
4. Impellor (fan/blower) is rotating in the wrong direction only (for 3ø Models ONLY).
5. Lint screen is dirty or is not being cleaned often enough.
6. Inadequate air flow ...
a. Impellor (fan/blower) failure.