Owner's Manual

22
Issue
Possible Cause
Solution
My air conditioner is not
cooling at all.
The unit is not operating in
cooling mode.
Set the unit to be in cooling
mode, and lower the set
temperature (pg. 13).
My air conditioner is not
cooling at all.
My air conditioner blows
cold air, but does not
lower the room
temperature.
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.
The filter may be dusty or
blocked.
Clean the filters (pg. 20).
The exhaust port is blocked.
Remove any obstructions in the
exhaust hose and port.
The unit has not been vented.
The unit must be vented (pg. 4).
My air conditioner blows
cold air, but does not
lower the room
temperature.
The unit makes a
gurgling sound.
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.
There are open windows and
doors.
Close any open doors or
windows.
There are 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 the curtains or pull down
the blinds to minimize the
amount of direct sunlight entering
the room.
The filter may be dusty or
blocked.
Clean the filter and replace it if
needed.
The condenser coils are dirty.
Carefully vacuum the coils clean.
The air intake or exhaust ports
are obstructed.
Remove anything blocking the
ports.
This sound is caused by the flow
of refrigerant inside the unit.
This is normal operation.
Tip: Run the unit before it is needed. For example, run the unit in the morning before the area
gets hot, and continue to run the unit all day long in order to maintain a low temperature.
Note: If the ambient temperature is above 90°F the unit may not blow cold air.