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Problem Possible Cause Solutions
Air conditioner
does not start.
The air conditioner is unplugged.
Make sure the air conditioner plug is pushed completely
into the outlet.
The fuse is blown/circuit breaker is
tripped.
Check the house fuse/circuit breaker box and replace the
fuse or reset the breaker.
Power failure.
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.
The current interrupter device is
tripped.
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.
Air conditioner
does not cool/heat
as it should
Airflow is restricted.
Make sure there are no curtains, blinds, or furniture
blocking the front of the air conditioner.
The temp control may not be set
correctly.
Set the desired temperature to a level lower or higher than
the current temperature.
The air filter is dirty.
Clean the filter at least every 2 weeks. See the
'MAINTENANCE' section.
The room may been cold/hot.
When the air conditioner is first turned on, you need to
allow time for the room to heat up/cool down.
Cold air is escaping. Check for open furnace floor registers and cold air returns.
Hot air is escaping. Make sure that all vents are closed to air returns.
Cooling coils have iced up. See 'Air conditioner freezing up' below.
Air conditioner
freezing up.
The cooling coils are iced over.
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.
Water drips
outside.
Hot, humid weather. This is normal.
Water drips
indoors.
The air conditioner is not tilted to
the outside.
For proper water disposal, make sure the air conditioner
slants slightly from the case front to the rear.
Water collects in
base pan.
Moisture removed from air and
drains into base pan.
This is normal for a short period in areas with little
humidity; normal for a longer period in very humid areas.
Air conditioner
turns on and off
rapidly.
Dirty air filter - air restricted. Clean air filter.
Outside temperature extremely hot.
Set FAN speed to a faster setting to bring air through
cooling coils more frequently.
Noise when unit is
cooling/heating.
Air movement sound. This is normal. If too loud, set to lower FAN setting.
Window vibration - poor installation. Refer to installation instructions or check with installer.
Room too
cold/hot.
Set temperature too low. Increase set temperature.
Set temperature too high. Decrease set temperature.
34
TROUBLESHOOTING
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