Room Air Conditioner Voltage Limits - LG LP073HDUC Manual

COMPLAINT
Compressor will not run,
but fan motor runs.

ROOM AIR CONDITIONER VOLTAGE LIMITS

NAME PLATE RATING
208/230V
Copyright ©2012 LG Electronics. Inc. All right reserved.
Only for training and service purposes
CAUSE
Voltage
Wiring
Rotary
Thermostat
Capacitor (Discharge
capacitor before
servicing.)
Compressor
Overload
Pressure Switch
- 49 -
REMEDY
Check voltage. See the limits on the preceding.
page. If not within limits, call an electrician.
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.
Check for continuity, refer to the wiring diagram
for terminal identification. Replace the switch if
circuit is open.
Check the position of knob If not at the coldest
setting, advance the knob to this setting and
restart unit.
Check continuity of the thermostat. Replace
thermostat if circuit is open.
Check the capacitor.
Replace if not within ±10% of manufacturers
rating. Replace if shorted, open, or damaged.
Check the compressor for open circuit or
ground. If open or grounded, replace the
compressor.
Check the compressor overload, if externally
mounted. Replace if open. (If the compressor
temperature is high, remove the overload, cool it,
and retest.)
Check continuity of the pressure switch. Replace the
pressure switch if circuit is open.
MINIMUM
187V
MAXIMUM
253V
LGE Internal Use Only