American Dryer Corp. AD-310 Phase 7 Tilting User Manual

Page 66

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f.

V-belts are too tight.

g. Dryer has an oversized load.

h. Voltage to the dryer is incorrect...check dryer data label for specified voltage.

2. Failed overload protector...

a.

Incorrect overload setting.

E.

Impellor (fan) motor is not operating (does not start)...

*

Microprocessor controller (computer) input/output (I/O) board “FAN” relay output indicator is on.

1. Blown blower (fan and impellor) motor overloads.

2. Failed blower (fan and impellor) motor contactor (relay).

3. Failed blower (fan and impellor) motor.

4. No 24 VAC present at fan motor contactor coil.

*

Microprocessor controller (computer) I/O board “FAN” relay output indicator is off.

1. Failed microprocessor controller (computer) I/O board.

F.

Blower (fan and impellor) motor operates okay for a few minutes and then either repeatedly
or occasionally trips the overload protector...

NOTE: When the overload protector trips, the microprocessor controller (computer) I/O board

“red” light emitting diode (L.E.D.) “FNOL” will be off and the display will read “Fan
Overload Fault.”

1. Motor is overheating...

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 gear reducer or basket (tumbler) bearing.

f.

V-belts are too tight.

g. Motor is running at incorrect voltage.

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