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TROUBLE CHART (Cont.)
TROUBLE REASON ACTION
Air flow cannot circulate freely Remove obstructions.
Dirty filters reduce air quantity circulating. Clean air filters
Doors and/or windows are open. Close doors and windows
Fan speed has been set to “Low” Set fan speed at high speed.
Air flow direction is not correct Adjust airflow direction as per the mode
chosen.
Air conditioner is not supplying
enough cooling.
Selected temperature is higher than the
room temperature in the cooling mode.
Correct selected temperature.
Air flow cannot circulate freely Remove obstructions.
Dirty filters reduce air quantity circulating. Clean air filters
Doors and/or windows are open. Close doors and windows
Fan speed has been set to “Low” Set fan speed at high speed.
Air flow direction is not correct Adjust airflow direction as per the mode
chosen.
Air conditioner is not supplying
enough heating.
Selected temperature is Lower than the
room temperature in the heating mode.
Correct selected temperature.
Green LED is flashing System malfunction contact service
center after having made the following
checks:
• Air filters are clean.
• Air circulation is not
obstructed.
• Outdoor unit coil is not
obstructed with a service
reduction of air circulation.
Refer to the installation manual for fault
code reading to be notified to service
center.
Restart air conditioner after having
corrected the faults.
A slight mist is emitted from the
indoor unit during cooling
The cool air from the indoor unit is coming
into contact with the room air.
Normal operation
A slight whistling noise is heard when
is heard when the air conditioner
starts or stops.
This is due to the refrigerant beginning to
circulate or an adjustment of the
refrigerant pressures.
Normal operation
Water vapor (mist) emanating from the
outdoor unit.
It is normal in heat pump operation, when
defrost is automatically activated.
Normal operation
Unpleasant smells coming from the
indoor unit.
Unpleasant smells can be caused by
substances accumulated in the air filters
Switch the system OFF and contact an
authorized service center to have the
filters cleaned.
Restart unit in the ventilation (fan only)
mode and open windows to change room
air.
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