Common Issues - LG LW240CE Owner's Manual

Common Problems and Solutions
Before calling for service, please review the following list of common problems and solutions.
The air conditioner is operating normally when:
• You hear a pinging noise. This is caused by water being picked up by the condenser on rainy days or in highly
humid conditions. This feature is designed to help remove moisture in the air and improve cooling efficiency.
• You hear the thermostat click. This is caused by the compressor cycle starting and stopping.
• You see water dripping from the rear of the unit. Water may be collected in the base pan in highly humid
conditions or on rainy days. This water overflows and drips from the rear of the unit.
• You hear the fan running while the compressor is silent. This is a normal operational feature.
The air conditioner may be operating abnormally when:
Problem
Air conditioner
does not start
Air conditioner
does not cool as it
should
Air conditioner
freezing up
20 Owner's Manual
Possible Causes
The air conditioner is unplugged.
The fuse is blown/circuit breaker is
tripped.
Power failure.
Airflow is restricted.
TEMP Control set to a higher
number.
The air filter is dirty.
The room may have been hot.
Cold air is escaping.
Cooling coils have iced up.
Ice blocks the air flow and stops
the air conditioner from cooling the
room.
What To Do
• 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.
• 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.
• Set the TEMP Control to a lower number.
• Clean the filter at least every 2 weeks.
See the operating instructions 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.
• Set the air conditioner's vent to the closed
position.
• See Air Conditioner Freezing Up below.
• Set the mode control at High Fan at a high
temperature.

Common Issues