COMPLAINT

CAUSE

REMEDY

 

 

 

Fan motor noise.

Fan blade

If cracked, out of balance, or partially missing,

 

 

replace it.

 

 

 

 

Blower wheel

If cracked, out of balance, or partially missing,

 

 

replace it.

 

 

 

 

Loose set screw

Tighten it.

 

 

 

 

Worn bearings

If knocking sounds continue when running

 

 

replace the motor. If the motor hums or

 

 

noise appears to be internal while running,

 

 

replace motor.

 

 

 

Compressor will not run,

Voltage

Check voltage. See the limits on the preceding

fan motor runs.

 

page. If not within limits, call an electrician.

 

 

 

 

Wiring

Check the wire connections; if loose, repair or

 

 

replace the terminal. If the wires are discon-

 

 

nected, refer to wiring diagram for identification,

 

 

and replace the wires. Check the wire connections;

 

 

If not according to the wiring diagram, correct

 

 

the connections.

 

 

 

 

Thermistor

Check the TEMP control. If not at the lowest

 

 

number, set TEMP control to this setting.

 

 

 

 

 

Check the continuity of the thermistor. Replace

 

 

the control board if the circuit is open.

 

 

 

 

Capacitor (discharge

Check the capacitor.

 

capacitor before

Replace if not within ±10% of manufacturer’s

 

servicing.)

rating, replace if shorted, open, or damaged.

 

 

 

 

Compressor

Check the compressor for open circuit or

 

 

ground. If open or grounded, replace the

 

 

compressor.

 

 

 

 

Overload

Check the compressor overload if externally mounted.

 

 

Replace if open. (If the compressor temperature is

 

 

high, remove the overload, cool, and retest.)

 

 

 

Compressor cycles on

Voltage

Check the voltage. See the limits on the

overload.

 

preceding page. If voltage is not within these limits,

 

 

call an electrician.

 

 

 

 

Overload

Check overload, if externally mounted.

 

 

Replace if open. (If the compressor temperature

 

 

is high, remove the overload, cool, and retest.)

 

 

 

—17

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Friedrich CP05C10 manual Complaint Cause Remedy

CP05C10 specifications

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