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Problem
Cause
Temperature setting may be higher than
ambient room temperature
The heat exchanger on the indoor or out-
door unit is dirty
The air filter is dirty
The air inlet or outlet of
either unit is blocked
Poor Cooling
Doors and windows are open
Performance
Excessive heat is generated by sunlight
Too many sources of heat in the room
(people, computers, electronics, etc.)
Low refrigerant due to leak or long-term
use
SILENCE function is activated(optional
function)
Power failure
The power is turned off
The fuse is burned out
The unit is not
Remote control batteries are dead
working
The Unit's 3-minute protection has been
activated
Timer is activated
There's too much or too little refrigerant
in the system
The unit starts and
Incompressible gas or moisture has ente-
stops frequently
red the system.
The compressor is broken
The voltage is too high or too low
The outdoor temperature is exetremtly
low
Poor heating
Cold air is entering through doors and
performance
windows
Low refrigerant due to leak or long-term
use
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
Error code appears in
itself.
the window display
If not, disconnect the power, then connect it again. Turn the unit on.
of indoor unit:
If the problem persists, disconnect the power and contact your nearest customer ser-
• E0, E1, E2...
vice center.
• P1, P2, P3...
• F1, F2, F3...
If the trouble has not been corrected, please contact your supplier. Be sure to inform them of the detailed
malfunctions and unit model.
G
NOTE!
Reparation of the device should only be done by an authorized air conditioning engineer.
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Solution
Lower the temperature setting
Clean the affected heat exchanger
Remove the filter and clean it according
to instructions
Turn the unit off, remove the obstruction
and turn it back on
Make sure that all doors and windows are
closed while operating the unit
Close windows and curtains during peri-
ods of high heat or bright sunshine
Reduce amount of heat sources
Check for leaks, re-seal if necessary and
top off refrigerant
SILENCE function can lower product per-
formance by reducing operating frequen-
cy. Turn off SILENCE function.
Wait for the power to be restored
Turn on the power
Replace the fuse
Replace batteries
Wait three minutes after restarting the
unit
Turn timer off
Check for leaks and recharge the system
with refrigerant.
Evacuate and recharge the system with
refrigerant
Replace the compressor
Install a manostat to regulate the voltage
Use auxiliary heating device
Make sure that all doors and windows are
closed during use
Check for leaks, re-seal if necessary and
top off refrigerant
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