28
TROUBLESHOOTING
MALFUNCTION
POSSIBLE CAUSES
The Appliance does not work
Power failure / not plugged into power source
Damaged indoor / outdoor unit fan motor
Faulty compressor thermo-magnetic circuit breaker
Faulty protective device or fuses
Loose connections
Self-protective feature
Voltage too high or too low
Active timer-on function
Damaged electronic control board
Strange odor
Dirty air filter
Running water noise
Liquid black flow in the refrigerant circulation
Mist come out from the air
outlet
This occurs when the air in the room becomes very cold, for example in
the “cooling” or “dehumidifying / dry” modes
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 has been blocked
Air filter is clocked
Fan speed set at low
Other heat sources 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 the indoor unit signal receiver
The display if off
Power failure
