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Owner’s Manual 21
ENGLISH
Maintenance and Service
The air conditioner may be operating abnormally when:
Problem
■ The air conditioner is
unplugged or not plugged in
completely.
■ The fuse is blown/circuit
breaker is triggered.
■ Power failure.
■ The current interrupter
device is tripped.
■ Air flow is restricted.
■ TEMP Control set too higher
number.
■ The air filter is dirty.
■ The air conditioner was just
turned on.
■ Cold air is escaping.
■ Cooling coils are iced up.
■ The 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.
• Press the RESET button located on
the power cord plug. If the RESET
button will not stay engaged,
discontinue use of the air conditioner
and contact a qualified service
technician.
• Make sure there are no curtains,
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 "Maintenance and
Service" 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 mode control at High Fan or
High Cool with the high temperature.
What To DoPossible Causes
Troubleshooting