MICROPROCESSOR (COMPUTER) MODELS
A.No L.E.D. display (microprocessor models only)
1.Service panel fuse blown or tripped breaker.
2.Blown control circuit L1 or L2 1/2 amp slo blo fuse.
3.Failed microprocessor controller.
4.Failed control stepdown transformer (380 volts or higher models only).
B.Drive motor not operating (does not start)
1.Microprocessor (computer) motor indicator dot and relay output L.E.D. indicator dots are on
a.Failed drive motor contactor (relay).
2.Microprocessor (computer) motor indicator dot and “door” L.E.D. indicator are on, but motor output L.E.D. indicator is off.
C.Drive motor operates normally for a few minutes, then stops and will not restart
1.Motor is overheating and tripping internal overload protector
a.Motor air vents are clogged with lint.
b.Low voltage to motor.
c.Failed motor.
d.Basket (tumbler) is binding, check for obstruction.
D.Microprocessor controller (computer) display reads “dFSL” continuously and the buzzer (tone) sounds every 30 seconds.
1.Fault in microprocessor heat sensing circuit
a.Blown “dFSL” 1/8 amp fuse on the microprocessor (computer).
b.Failed microprocessor temperature sensor.
c.Failed microprocessor controller.
d.Broken wire or connection somewhere between the microprocessor controller (computer) and microprocessor temperature sensor.
E.Microprocessor controller (computer) display reads “door” and microprocessor controller (computer) “door” L.E.D. indicator is off.
1.Fault (open circuit) in main door switch circuit.
a.Main door not closed all the way.
b.Main door switch is out of proper adjustment.
c.Failed main door switch.
d.Broken connection or wire in main door wiring circuit.
2.Failed 24 VAC step down transformer or fault in wiring.
F.Microprocessor controller (computer) L.E.D. display reads “door” and microprocessor controller (com- puter) “door” L.E.D. indicator is on.
35