16
Air conditioner on and off too much, or does not cool/heat room in cooling/heating mode.
Check if ...
FAN CONTROL is set to
POWER SAVER (some
models).
The air conditioner is not
properly sized for your room.
The filter is dirty or
obstructed by debris.
The inside evaporator and
outside condenser coils are
dirty or obstructed by debris.
There is excessive heat or
moisture (open container
cooking, showers, etc.)
in the room.
The louvers are blocked.
The outside temperature is
below 65°F (18°C).
The temperature of the room
you are trying to cool
is extremely hot.
Windows or doors to the out-
side are open.
The EXHAUST Control is set
to OPEN.
The THERMOSTAT Control is
not at a cool enough setting.
The air conditioner is
installed on the sunny
side of your house.
The air conditioner in the
heating mode has insufficient
BTUs/hr for the heating
requirements of the room.
Then ...
Use POWER SAVER only when you are away from home or asleep, since the fan
does not circulate the room air continuously. Use LOW COOL, MED COOL (some
models) or HIGH COOL for your best comfort.
Check the cooling capabilities of your room air conditioner. Room air conditioners are
not designed to cool multiple rooms. Heating units are supplemental only. See page 6.
Clean the filter. See page 11.
Clean the inside evaporator and outside condenser coils. See page 13.
Use a fan to exhaust heat or moisture from the room. Try not to use heat-producing
appliances during the hottest part of the day.
Install the air conditioner in a location where the louvers are free from curtains, blinds,
furniture, etc.
Do not try to operate your air conditioner in the cooling mode when the outside
temperature is below 65°F (18°C).
Allow extra time for the air conditioner to cool off a very hot room.
Close all windows and doors.
Set the EXHAUST Control to CLOSED for maximum cooling and/or heating.
Adjust the THERMOSTAT Control to a cooler setting by turning the knob clockwise.
Turn FAN CONTROL to HIGH COOL.
Install your air conditioner in a more shaded window.
Do not use the air conditioner as a primary source of heat. See page 6.
Check if ...
The air conditioner is not
properly leveled. The air
conditioner should slope
slightly downward toward
the outside.
Then ...
Level the air conditioner to provide a downward slope toward the outside (1⁄2 bubble
on a carpenter’s level) to ensure proper drainage. See the Installation Instructions.
Reposition or shim the cabinet as necessary.
NOTE: Do NOT drill a hole in the bottom of the metal base and condensate pan.
Water drips from cabinet into your house.