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SPLIT-TYPE ROOM AIR CONDITIONER
USER GUIDE
When troubles occur, please check the following points before contacting a repair company.
Problem Possible Causes Solution
Poor Cooling
Performance
Temperature setting may be higher
than ambient room temperature
Lower the temperature setting
The heat exchanger on the indoor or
outdoor unit is dirty
Clean the affected heat exchanger
The air filter is dirty
Remove the filter and clean it according
to instructions
The air inlet or outlet of either unit is
blocked
Turn the unit off, remove the obstruction
and turn it back on
Doors and windows are open
Make sure that all doors and windows are
closed while operating the unit
Excessive heat is generated by sunlight Close windows and curtains during
periods of high heat or bright sunshine
Too many sources of heat in the room
(people, computers, electronics, etc.)
Reduce amount of heat sources
Low refrigerant due to leak or long-
term use
Check for leaks, re-seal if necessary and
top off refrigerant
SILENCE function is activated (optional
function)
SILENCE function can lower product
performance by reducing operating
frequency. Turn off SILENCE function.
The unit is not
working
Power failure Wait for the power to be restored
The power is turned off Turn on the power
The fuse is burned out Replace the fuse
Remote control batteries are dead Replace batteries
The Unit’s 3-minute protection has
been activated
Wait three minutes after restarting the
unit
Timer is activated Turn timer off
The unit starts
and stops
frequently
There’s too much or too little
refrigerant in the system
Check for leaks and recharge the system
with refrigerant.
Incompressible gas or moisture has
entered the system.
Evacuate and recharge the system with
refrigerant
The compressor is broken Replace the compressor
The voltage is too high or too low Install a manostat to regulate the voltage
Poor heating
performance
The outdoor temperature is extremely
low
Use auxiliary heating device
Cold air is entering through doors and
windows
Make sure that all doors and windows are
closed during use
Low refrigerant due to leak or long-
term use
Check for leaks, re-seal if necessary and
top off refrigerant
Indicator lamps
continue flashing
The unit may stop operation or continue to run safely. If the indicator lamps
continue to flash or error codes appear, wait for about 10 minutes. The problem
may resolve itself. If not, disconnect the power, then connect it again. Turn the
unit on. If the problem persists, disconnect the power and contact your nearest
customer service center.
Error code
appears and
begins with the
letters window
display of indoor
unit: E(x), P(x),
F(x), EH(xx),
EL(xx), EC(xx),
PH(xx), PL(xx),
PC(xx)