B. drive motor |s operating (does not start), Microprocessor (computer) models – ADC AD-78 User Manual
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MICROPROCESSOR (Computer) MODELS
A. No L.E.D. (light emitting diode) display (for microprocessor [computer] models ONLY)...
1. Service panel fuse blown or tripped breaker.
2. Blown control circuit LI or L2 1/2-amp (slo bio) fuse.
3. Failed microprocessor controller (computer).
4. Failed control step down transformer (for 380 volts or higher models ONLY).
B. Drive motor |s operating (does not start)...
1. Microprocessor controller (computer) motor indicator dot and relay output L.E.D. indicator dots are on...
a. Failed drive motor contactor (relay).
b. Failed arc suppressor (A.S.) board (for Reversing Models ONLY).
c. Failed drive motor.
2. Microprocessor controller (computer) motor indicator dot and relay output L.E.D. indicator dots are on,
but motor output L.E.D. indicator is off...
a. Failed microprocessor controller (computer).
C. Drive motor
(Reversing Models ONLY)
operates in one direction only ... stops and restarts in
the same direction •••
1. Failed reversing contactor (relay).
2. Failed arc suppressor (A.S.) board.
3. Failed microprocessor controller (computer)...check output indicator.
D. Drive motor operates okav for a few minutes, then stops and will not restart...
1. Motor is overheating euid tripping out on internal overload protector...
a. Motor air vents clogged with lint.
b. Low voltage to motor.
c. Failed motor.
d. Tumbler (basket) is binding...check for an obstruction.
e. Failed idler bearings or tumbler bearings.
f. Failed blower (impellor/fan)...out of balance (for Non-Reversing Models ONLY).
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