LG LWHD8008R Service Manual - Page 21

COMPLAINT Fan motor noise. Compressor will not run, fan motor runs. Compressor cycles on overload. CAUSE REMEDY Fan Blower Loose set screw Worn bearings Voltage Wiring Rotary Thermostat If cracked, out of balance, or partially missing, replace it. If cracked, out of balance, or partially missing, replace it. Tighten it. 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. 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 the wires are disconnected, refer to wiring diagram for identification, and replace the wires. Check the wire connections; If not according to the wiring diagram, correct the connections. Check for continuity, refer to the wiring diagram for terminal identification. Replace the switch if the circuit is open. Check the position of knob. If not at the coldest setting, advance the knob to this setting and restart the unit. Check the continuity of the thermostat. Replace the thermostat if the circuit is open. Capacitor (discharge capacitor before servicing.) Check the capacitor. Replace if not within ±10% of manufacturer's 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.) Voltage Check the voltage. See the limits on the 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.) -20-