American Dryer Corp. MD-170 Clothes Dryer User Manual


 
45
G. Both drive motor and blower (impellor/fan) motor are not operating (do not start)...microprocessor
controller (computer) motor indicator dots and relay output L.E.D. indicator dots are on...
1. Failed arc suppressor (A.S.) board.
2. Failed contactors (both blower and drive).
3. Failed motors (both blower and drive).
H. Both drive motor and blower (impellor/fan) motor is not operating (do not start)... microprocessor
(computer) motor indicator dots and "door" L.E.D. indicator are on but relay output L.E.D.
indicators are off (L.E.D. [(light emitting diode] display does not read "door")...
1. Failed microprocessor controller (computer).
I. Both drive motor and blower motor run a few minutes and then stop...microprocessor controller
(computer) display continues to read time or percent of extraction and ALL indicator dots are
off...
1. Fault in main door switch circuit ...
a. Main door switch out of adjustment.
b. Loose connection in door switch circuit.
2. Fault in lint drawer switch circuit ...
a. Lint drawer switch out of proper adjustment.
b. Loose connection in the lint drawer switch circuit.
J. Microprocessor controller (computer) display reads "dSFL" continuously and the buzzer (tone)
sounds every 30-seconds......
1. Fault in microprocessor heat sensing circuit ...
a. Blown 1/8-amp ("dSFL") fuse on microprocessor controller (computer).
b. Failed microprocessor temperature sensor.
c. Failed microprocessor controller (computer).
d. Broken wire or connection somewhere between the microprocessor controller (computer) and the micro-
processor temperature sensor.