COMPLAINT

CAUSE

REMEDY

 

 

 

Compressor will not run,

Voltage

Check voltage. See the limits on the preceding.

but fan motor runs.

 

page. If not within limits, call an electrician.

 

 

 

 

Wiring

Check the wire connections, if loose, repair or

 

 

replace the terminal. If wires are off, refer to wiring

 

 

diagram for identification, and replace. Check wire

 

 

locations. If not per wiring diagram, correct.

 

 

 

 

Rotary

Check for continuity, refer to the wiring diagram

 

 

for terminal identification. Replace the switch if

 

 

circuit is open.

 

 

 

 

Thermistor

Check the position of knob If not at the coldest

 

 

setting, advance the knob to this setting and

 

 

restart unit.

 

 

Check continuity of the thermistor. Replace

 

 

thermistor if circuit is open.

 

 

 

 

Capacitor (Discharge

Check the capacitor.

 

capacitor before

 

Replace if not within ±10% of manufacturers

 

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 it,

 

 

and retest.)

 

 

 

ROOM AIR CONDITIONER VOLTAGE LIMITS

NAME PLATE RATING

MINIMUM

MAXIMUM

 

 

 

208/230V

187V

253V

 

 

 

Copyright ©2008 LG Electronics. Inc. All right reserved.

- 42 -

Only for training and service purposes

LGE Internal Use Only

 

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LG Electronics LP121CEM-Y8 manual Room AIR Conditioner Voltage Limits, 208/230V 187V 253V