Friedrich CP06F10, CP08F10 manual Troubleshooting Guide

Page 24

 

 

 

Troubleshooting Guide

 

 

 

 

 

 

 

 

 

 

 

COMPLAINT

CAUSE

REMEDY

 

 

 

 

 

 

Fan motor noise.

Fan

If cracked, out of balance, or partially missing,

 

 

 

replace it.

 

 

 

 

 

 

 

Blower

If cracked, out of balance, or partially missing,

 

 

 

replace it.

 

 

 

 

 

 

 

Loose set screw

Tighten it.

 

 

 

 

 

 

 

Worn bearings

If knocking sounds continue when running or

 

 

 

loose, 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 and

 

 

 

restart the unit.

 

 

 

 

 

 

 

Check the continuity of the thermistor. Replace

 

 

 

the thermistor if the circuit is open.

 

 

 

 

 

 

 

Check the continuity of the thermostat. Replace

 

 

 

the thermostat 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.)

Service Manual 24

Image 24
Contents Room Air Conditioner Service and Parts Manual Table of Contents Safety Precautions Be sure not to doDo not modify power cord length Do not clean the air conditioner with water Dimensions Symbols Used in this ManualOutside Dimensions Product Specifications OperationRoom Air Conditioner Disassembly Mechanical PartsFront Grille CabinetAir Handling Parts AIR Guide and BlowerElectrical Parts MotorOverload Protector CompressorPower Cord CapacitorEvaporator Capillary TubePulling Vacuum Circuit Diagram Electronic Control Device Troubleshooting Guide Piping SystemTroubleshooting Guide Unit runs but poor coolingFails to Start Electric Parts Troubleshooting Guide Possible TroubleSet the Temp. setting to lower Temp Is the voltage No.16 CN-DISP1 on Main P.W.B Assy DC 5V? Room AIR Conditioner Voltage Limits Troubleshooting Guide Complaint Cause Remedy Exploded View Pwbpcb ASSEMBLY,DISPLAY Pwbpcb ASSEMBLY,DISPLA Use Factory Certified Parts