30
TROUBLESHOOTING
MALFUNCTION
Strange odor
The appliance does not
operate
Noise of running water
A fine mist comes from
the air outlet
Insufficient airflow, either
hot or cold
The appliance does not
respond to commands
The display is off
Switch off the air condi-
tioner immediately and
cut off the power supply
in the event of:
ERROR SIGNALS ON THE DISPLAY
POSSIBLE CAUSES
Power failure/plug pulled out.
Damaged indoor/outdoor unit fan motor.
Faulty compressor thermomagnetic circuit breaker.
Faulty protective device or fuses.
Loose connections or plug pulled out.
It sometimes stops operating to protect the appliance.
Voltage higher or lower than the voltage range.
Active TIMER-ON function.
Damaged electronic control board.
Dirty air filter.
Back flow of liquid in the refrigerant circulation.
This occurs when the air in the room becomes very cold, for example in the
COOLING
or
DEHUMIDIFYING/DRY
modes.
This noise is made by the expansion or contraction of the front panel due
to variations in temperature and does not indicate a problem.
Unsuitable temperature setting.
Obstructed air conditioner intakes and outlets.
Dirty air filter.
Fan speed set at minimum.
Other sources of heat in the room.
No refrigerant.
Remote control is not close enough to indoor unit.
The batteries of remote control need to be replaced.
Obstacles between remote control and signal receiver in indoor unit.
Display function inactive
Power failure.
Strange noises during operation.
Faulty electronic control board.
Faulty fuses or switches.
Spraying water or objects inside the appliance.
Overheated cables or plugs.
Very strong smells coming from the appliance.
A strange noise can be
heard
Indoor temperature sensor fault
Description of the trouble
Display
Outdoor pipe temperature sensor fault
Indoor pipe temperature sensor fault
Malfunction of indoor fan motor
Refrigerant system leakage or fault
Outdoor air temperature sensor fault
Outdoor discharge temperature sensor fault
Outdoor IPM module fault
Description of the trouble
Display
Outdoor PCB EEPROM fault
Outdoor current detect fault
In case of error, the display on the indoor unit shown the following error codes:
Outdoor suction temperature sensor fault
Outdoor fan motor fault
