W. dryer operates but is taking too iong to dry – ADC AD-78 User Manual
Page 58
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1. Failed oven contactor/coil.
2. Failed electric heating elem ent(s).
STEAM MODELS...
1. Air O perated System ...
a. No (external) com pressed air
(80 PSI required)
to steam dam per solenoid.
b. Failed steam dam per pneum atic solenoid.
c. Steam dam per stuck in
closed position...c]\Qc\si
for obstruction.
d. Leak in pneum atic system .
e. Failed steam dam per air piston.
f. Flow control valve m isadjusted.
2. Electrical M echanical System ...
a. Failed electrical m echanical m otor.
b. Steam dam per stuck in
closed position...ch&c\.
for obstruction.
W. Dryer operates but is taking too iong to dry...
1.
Exhaust duct work run is too long or is undersized...back pressure
cannot
exceed
0.3
inches water
colum n (W .C.).
2. Restriction in duct work...
a. Dryer back draft dam per 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 m ake-up air.
4. Im pellor (fan/blower) is rotating in the wrong direction only
(for 30 Models ONLY).
5. Lint screen is dirty or is not being cleaned often enough.
6. Inadequate air flow ...
a.
Im pellor (fan/blower) failure.
ELECTRIC M ODELS ...
53