LG LAU181CNW Owner's Manual - Page 30

Maintenance and Service Troubleshooting The air conditioner may be operating abnormally when: Problem Possible Causes What To Do I The air conditioner is unplugged. • Make sure the air conditioner plug is pushed completely into the outlet. Air conditioner does not start I The fuse is blown/circuit breaker is tripped. I Power failure. • Check the house fuse/circuit breaker box and replace the fuse or reset the breaker. • If power failure occurs, turn the mode control to Off. When power is restored, wait 3 minutes to restart the air conditioner to prevent tripping of the compressor overload. I Airflow is restricted. • Make sure there are no curtains, blinds, or furniture blocking the front of the air conditioner. I The thermostat may not be set high enough. • Turn the knob to a higher number. The highest setting provides maximum cooling. I The air filter is dirty. Air conditioner does not cool as it should I The room may have been hot. I Cold air is escaping. • Clean the filter at least every 2 weeks. See the care and Maintenance section. • When the air conditioner is first turned on, you need to allow time for the room to cool down. • Check for open furnace floor registers and cold air returns. I Cooling coils have iced up. • See Air Conditioner Freezing Up below. Air conditioner freezing up I Ice blocks the air flow and • Set the mode control at High Fan or stops the air conditioner from High Cool with thermostat at 1 or 2. cooling the room. * You can refer to the Energy Star program in detail at www.energystar.gov. 30 Room Air Conditioner