Problem
ƵThe air conditioner is unplugged or
not plugged in completely.
ƵThe fuse is blown/circuit breaker is
triggered.
ƵPower failure.
ƵAir flow is restricted.
ƵTEMP Control set too higher
number.
ƵThe air filter is dir ty.
ƵThe air conditioner was just
turned on.
ƵCold air is escaping.
ƵCooling coils are iced up.
ƵThe cooling coils are iced over.
The air
conditioner
does not
operate at all
Air
conditioner
does not cool
Ice appears
on the air
conditioner.
• 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 cur tains, blinds,
furniture or other obstacles in front of the air
conditioner.
• Set the TEMP control to a lower number.
• Clean the filter at least every 2 weeks. Refer
to the "Care and Maintenance" section (p.18)
of the manual.
• After the air conditioner is tur ned 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 mode control at High Fan or High Cool
with the high temperature.
What To DoPossible Causes
Troubleshooting
Normal Operation
Maintenance and Service
• You may hear a pinging noise caused by water being picked up and thrown against the
condenser on rainy days or when the humidity is high. This design feature helps remove
moisture and improve efficiency.
• You may hear the thermostat click when the compressor cycles on and off.
• Water will collect in the base pan during high humidity or on rainy days. The water may overflow
and drip from the outdoor side of the unit.
• The fan may run even when the compressor does not.
Troubleshooting Tips
Save time and money! Review the chart below first and you may not need to call for service.
Owner’s Manual 20
ENGLISH