18
Problem
Possible Cause
Solution
Air conditioner
cooling, but room
is too warm -
NO
ice forming on
cooling coil behind
front grill.
Dirty air filter- air
restricted.
Clean air filter. Refer to Installation
and Cleaning section.
Temperature is set too
High.
Set to a Lower temperature.
The directional louvers on
the front are positioned
improperly.
Position louvers for better air
distribution.
Front of unit is blocked by
drapes, blinds, furniture,
etc. and is restricting air
distribution.
Clear blockage in front of unit.
Doors, windows, registers,
etc. are open and cold air
is escaping.
Close doors, windows, registers.
Unit recently turned on in
hot room.
Allow additional time for unit to
remove stored heat from walls,
ceiling, floor and furniture.
Air conditioner
turns on and off
frequently.
Dirty air filter- air
restricted.
Clean air filter.
Outside temperature is
extremely hot.
Set FAN speed to a Higher setting to
push more air through the coils.
Noise when unit is
cooling.
Air movement sound.
This is normal. If too loud, set to a
slower FAN setting.
Window vibration - poor
installation.
Refer to installation instructions or
check with installer.
Water dripping
INSIDE when unit
is cooling.
Improper installation.
Tilt air conditioner slightly downward
toward the outside to allow water
drainage. Refer to installation
instructions - check with installer.
Water dripping
OUTSIDE when
unit is cooling.
Unit removing large
quantity of moisture from
humid room.
This is normal during very humid
days.
Room too cold
Set temperature is too
low.
Increase the set temperature.
Set temperature
cannot be adjusted
The unit is in Auto mode
Press the Mode button on the
control panel or remote to take the
unit out of Auto mode
