Copu microprocessor ('computer') models, B. drive motor not operating (does not start), Opl) microprocessor (computer) models – American Dryer Corp. AD-385 User Manual
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COPU Microprocessor ('Computer') Models
A. No display (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 models 380 volts or higher ONLY).
B. Drive motor not operating (does not start)...
1. Microprocessor (computer) motor indicator dot and relay output LED indicator are on...
a. Failed drive motor contactor (relay).
b. Failed drive motor.
2. Microprocessor (computer) motor indicator dot and "door" LED indicator are on, but motor
output LED indicator is off...
a. Failed microprocessor controller (computer).
C.
Drive motor operates okay for a few minutes, and then stops and will not restart...
1. Motor is overheating and tripping out on the internal overload protector...
a. Motor air vents clogged with lint.
b. Low voltage to motor.
c. Failed motor.
d. Basket (tumbler) is binding...check for an obstruction.
e. Failed idler bearings or tumbler bearings.
f. Failed Impellor (blower/fan)... out of balance.
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