17
Troubleshooting Continued
Issue Possible Cause Solution
My air conditioner is
not cooling at all.
Unit is not operating in
cooling mode.
Set the unit to be in cooling
mode, and lower the set
temperature (pg. 13).
The compressor is not
on.
The compressor may take up
to 3 minutes to turn on, or
longer if it is too warm.
The ambient
temperature is too
high.
Lower the room temperature
to be below 90°F degrees.
The filter may be dusty
or blocked.
Clean the filters.
(pg. 16)
Blocked exhaust port. Remove any obstructions in
the exhaust hose and port.
My air conditioner
blows cold air, but
does not lower the
room temperature.
The unit is not vented. The unit must be vented. (pg.
4)
The area of the room
is too large.
Minimize the size of the area
to be cooled, i.e. adding a
drop ceiling. Use more than
one unit to cool the area, or
use a larger unit.
Open windows and
doors.
Close any open doors and
windows.
Too many heat
sources.
Remove or shut off additional
heat sources such as radio
equipment, servers, etc.
The room/garage may
be inadequately
insulated.
Properly insulate the room to
be cooled, i.e. using
fiberglass.
The ambient
temperature is too
high.
The unit may not work if the
room temperature is above
90°F.
Direct sunlight is
heating the room.
Close curtains or pull down
blinds, and minimize the
direct sunlight into the room.
The filter may be dusty
or blocked.
Clean the filter and replace it
if needed.
Dirty condenser coils. Carefully vacuum the coils
clean.
Obstructed air intake
or exhaust ports.
Remove anything blocking the
ports.
NOTE: If the ambient
temperature is above
90°F the unit may not
blow cold air.
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