LG LSU242HE Owner's Manual - Page 28
Troubleshooting
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Maintenance and Service Troubleshooting The air conditioner may be operating abnormally when: Problem Possible Causes What To Do Air conditioner does not start ■ The air conditioner is unplugged. ■ The fuse is blown/circuit breaker is tripped. ■ Power failure. ■ Airflow is restricted. ■ The air filter is dirty. Air conditioner does not cool as it should ■ The room may have been hot. ■ Cold air is escaping. ■ Cooling coils have iced up. • Make sure the air conditioner plug is pushed completely into the outlet. • 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. • Make sure there are no curtains, blinds, or furniture blocking the front of the air conditioner. • 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. • See Air Conditioner Freezing Up below. * You can refer to the Energy Star program in detail at www.energystar.gov. 28 Room Air Conditioner