American Dryer Corp. AD-78 II Clothes Dryer User Manual


 
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Q. Dryer stops during a cycle, microprocessor controller (computer) buzzer (tone) sounds for
5-seconds, and then the light emitting diode (L.E.D.) returns to “FILL”...
1. Loose connection somewhere in the main power circuit to the microprocessor controller (computer).
R. Microprocessor controller (computer) L.E.D. display reads “SEFL”...
1. Rotational sensor circuit failure...fault somewhere in the basket (tumbler) rotation or circuit...
a. Basket (tumbler) is not rotating...
1) Broken or loose V-belts.
2) Failure in drive motor circuit...refer to Section B, Section C, and Section D on page 46 and page
47.
b. Failed rotational sensor.
c. Broken wire or connection between rotation sensor and microprocessor controller (computer).
S. Microprocessor controller (computer) L.E.D. display reads “Hot”...
1. Possible overheating condition...microprocessor controller (computer) has sensed a temperature, which has
exceeded 220° F (104.5° C).
“Hot” display will not clear until temperature sensed has dropped to 220° F (104.5° C) or lower and the
microprocessor controller (computer) is manually reset by pressing the “CLEAR/STOP” key.
T. Heating unit is not operating (no heat)...no voltage at heating unit (i.e., gas model - Direct Spark
Ignition [DSI] module, electric model - electric oven contactor, or steam model - steam damper
system pneumatic solenoid) when dryer is first started and both the heat indicator dot and the
“HEAT” output L.E.D. is on...
GAS MODELS...
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment or has failed.
b. Sail switch damper is not closing or is fluttering...
1) Lint screen is dirty.
2) Restriction in the exhaust ductwork.
3) No exhaust airflow...
a) Failed blower (impellor/fan).
b) Fault in blower (impellor/fan) motor circuit (for reversing models only).