The following troubleshooting guide addresses the most common problems. If problems persist, call
customer service. Unplug and disconnect the appliance from the power source before attempting to
The air conditioning
unit does not start
Runs only a short
Runs but not cooling
Will not run and
WATER FULL indicator
Heater* is not
(This applies to
with built-in Heating*
Batteries in the remote control need
to be replaced.
The power cord is not properly
The safety LCDI plug has tripped
(USA / Canada / Mexico only).
The thermostat temperature setting
is too close to the room tempera-
Air outlet is blocked.
There are tight bends in the air
A door or window is open.
The air ﬁlter is dirty.
The exhaust hose is detached.
Temperature setting is too high.
Air outlet or intake is blocked.
Room exceeds recommended size.
Large size or number of windows
are decreasing cooling effectiveness.
Excess water condensation inside
Heating* function not activated yet.
Temperature setting is too low.
Check for power.
Change remote control batteries.
Remove and reconnect the
Reset the safety LCDI plug, if
problem persists contact our
customer support (USA /
Canada / Mexico only).
Lower the set temperature.
Make sure the exhaust hose is
Connect exhaust hose as per
instructions on page 4.
Make sure the window or door
Clean the air ﬁlter.
Reinstall exhaust hose properly
(refer to Installation section).
Reduce temperature setting.
Move unit to smaller room.
Cover windows with curtains or
Drain the water (refer to Water
Check that the Heating* function
has been activated. Increase
*Applicable for models with Heating feature only.