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TROUBLE
SHOOTING (Cont.)
TROUBLE
REASON
ACTION
Air conditioner will not start. Main
supply
switch is OFF
Switch to ON
Fuses or main switch are blown
Replace fuses
Protection against frequent
compressor cycling is ON
Wait for 3 minutes.
Selected temperature is higher than
the room temperature in the cooling
mode (or lower in the heating mode).
Correct selected temperature.
Air conditioner is not supplying
enough cooling.
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.
Selected temperature is higher than
the room temperature in the cooling
mode.
Correct selected temperature.
Air conditioner is not supplying
enough heating.
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.
Selected temperature is Lower than
the room temperature in the heating
mode.
Correct selected temperature.
Green led on the display panel
of indoor unit is showing a
malfunction
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 severe
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.
