User and Installation Manual

36
TROUBLESHOOTING AND SELF DIAGNOSIS
MALFUNCTION
POSSIBLE CAUSE
The appliance
does not
operate
Power failure
Damaged indoor/outdoor unit fan motor
Faulty compressor thermomagnetic circuit breaker
Faulty protective device or fuses
Loose connections
Self protection in adverse conditions
Voltage higher / lower than the voltage range
Active TIMER-ON function
Damaged electronic control board
Strange odour
Air filter dirty
Noise of running
water
Back flow of liquid in the refrigerant circulation
A fine mist
comes from
the air outlet
This occurs when the air in the room becomes very cold, for example
in the COOLING or DEHUMIDIFYING modes.
A strange noise
can be heard
This noise is made by the expansion or contraction of the front panel
due to variations in temperature and does not indicate a problem.
Insufficient
airflow, either
hot or cold
Inappropriate temperature setting.
Air inlet or outlet of indoor or outdoor unit has been blocked.
Air filter is blocked.
Fan speed set at minimum.
Other sources of heat in the room.
No refrigerant.
The appliance
does not
respond to
commands
Remote control is not near enough to indoor unit.
Battery in Remote controller may have been exhausted..
Obstacles between remote control and signal receiver in indoor unit.
The display is
off
Active LED function
Power failure
Remote cannot
select heating
mode.
Remove the batteries from the remote and follow the guide for
setting up the remote.
Switch off the air conditioner immediately and cut off the power supply in the
event of:
Strange noises during operation.
Faulty electronic control board
Faulty fuses or switches.
Spraying water or objects inside the appliance.
Overheated cables.
Very strong smells coming from the appliance.