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Service Manual 21
Troubleshooting Guide
NAME PLATE RATING MINIMUM MAXIMUM
115V 103.5V 126.5V
208/230V 187V 253V
YDEMERESUACTNIALPMOC
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 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 compres-
sor.
Check the compressor overload, if externally
mounted. Replace if open. (If the compressor
temperature is high, remove the overload, cool it,
and retest.)
Voltage
Wiring
Capacitor (Discharge
capacitor before
servicing.)
Compressor
Overload
Compressor will not run,
but fan motor runs.
ROOM AIR CONDITIONER VOLTAGE LIMITS