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* Microprocessor controller (computer) “MTR” relay output indicator is off.
1. Failed microprocessor controller (computer).
F. Blower (fan/impellor) motor operates okay for a few minutes, then either repeatedly or
occasionally trips the overload protector ...
NOTE: When the Overload Protector Trips, the Microprocessor Controller (computer) light emitting
diode (L.E.D.) Display Will Read “door.”
1. Motor is overheating...
a. Motor air vents clogged with lint.
b. Low voltage to the motor.
c. Failed motor.
d. Failed impellor/fan drive bearings
e. V-belts are too tight
2. Failed overload protector.
G. Both drive motor and blower (impellor/fan) motor not operating... microprocessor controller
(computer) L.E.D. motor indicator dots and the “MTR” relay output and forward “FWD” or
reverse “REV” L.E.D. indicators are on.
1. Blown drive motor and blower (fan/impellor) motor fuse(s)/overload(s).
2. Failed motors (both blower [fan/impellor] and drive).
H. Both drive motor and blower (fan/impellor) motor not operating... microprocessor controller
(computer) L.E.D. motor indicator dots and the “door” L.E.D. indicator are on but relay output
L.E.D. indicators are off (microprocessor controller [computer] L.E.D. display does not read
“door”)...
1. Failed microprocessor controller (computer).
I. Both drive motor and blower (impellor/fan) motor run for a few minutes then stop...microprocessor
controller (computer) L.E.D. display continues to read time or percent of extraction and ALL
indicator dots are off...
1. Fault in main door switch circuit ...
a. One (1) of the main door switches are out of adjustment.
b. Loose connection somewhere in the door switch circuit.
2. Fault in the lint drawer switch circuit.