14
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE REMEDY
Unit does not operate Unit is unplugged Securely plug receptacle into the
power outlet
Drain tank is full Empty water tank
Water tank not installed correctly Completely insert water tank
Air exhaust is clogged Clear exhaust hose
Timer is on Cancel the timer and wait for it to
run automatically
There is a heating source in the
room
Turn down or off the other
heating source
Unit does not cool room
Temperature setting is too high Lower temperature setting
Air filter is dirty Clean or replace the air filter
Air exhaust is not installed
correctly
Check the air exhaust duct to
make sure that the hot exhaust
air is let out of the room freely
Room is too big or too much
ambient sunlight is reaching in
This unit provides spot cooling or
cooling for a room no larger than
350 square feet with standard ceil-
ing height
There is frost on the evaporator The unit will defrost automatically
and return to operation afterwards
There is frost on the evaporator The unit will defrost automatically
and will return to operation after-
wards
The water tank is full Empty the water tank
The water tank is not installed
correctly
Completely insert the water
tank
In dehumidifying mode, no cool air
coming out
LCD window shows “E4”
Surface is not level Place unit on a level surface
and away from obstructions
Surface is not level Place unit on a level surface
Drainage plug is loose
Make sure the plug of drainage
spout is securely in place and in-
ternal black drain pipe is plugged
Power supply is unstable
Turn off the unit and wait for ten
minutes before restart. Call for
technical support if the “E1” per-
sists.
Noise or vibration
Water is leaking from unit
LCD window show “E1”