Common Issues - LG LP090HEM Owner's Manual

Common
Issues
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
The air conditioner
does not operate
at all
Air conditioner
does not cool
Ice appears on the
air conditioner.
Common Problems and Solutions
Possible Causes
I The air conditioner is unplugged or
not plugged in completely
I The fuse is blown/circuit breaker is
triggered
I Power failure.
I Air flow is restricted
I The TEMPERATURE CONTROL
may not be set cool enough
I The air filter is dirty.
I The air conditioner was just
turned on.
I Cold air is escaping.
I Cooling coils are iced up
I The cooling coils are iced over.
• Make sure the plug is completely plugged into
the outlet
• Check the fuse/circuit breaker box and replace
the fuse or reset the breaker
• In the event of a power failure, set the power
control to OFF. When the power is restored,
wait 3 minutes to restart the air conditioner to
prevent the compressor from overloading
• Make sure there are no curtains, blinds,
furniture or other obstacles in front of the air
conditioner
• Turn the knob to a higher setting. The highest
setting provides maximum cooling
• Clean the filter at least every 2 weeks. Refer to
the "Care and Maintenance" section of the
manual.
• After the air conditioner is turned on, you need
to give the air conditioner some time to cool the
room.
• Check for open furnace floor resisters and cold
air returns.
• CLOSE the air conditioner vent
• See Ice appears on the air conditioner below
• Ice may block the air flow and obstruct the air
conditioner from properly cooling the room. Set
the fan at HIGH while setting the TEMPERATURE
CONTROL at 1 or 2 until the ice melts.
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What To Do