14
EG
ERROR
LEDS
OPERATION TIMER STANDBY
POSSIBLE CAUSE
SYSTEM BEHAVIOUR
SOLUTION
E4
FF
O
Defective or not connected indoor coil
temperature sensor.
Fan is stopped and flap is closed.
The system restarts automatically
as soon as the sensor is repaired.
Check that the sensor is properly
connected to the PCB as shown in
the electrical wiring diagram.
Check that the sensor is not damaged
and, if necessary, replace it.
E5
FO
F
Defective or not connected room air
temperature/humidity sensor.
Fan is stopped and flap is closed.
The system restarts automatically
as soon as the sensor is repaired.
Check that the sensor is properly
connected to the PCB as shown in
the electrical wiring diagram.
Check that the sensor is not damaged
and, if necessary, replace it.
E6
OF
F
Fan
motor
error.
Fan is stopped and flap is closed.
The system restarts automatically
after some seconds.
Check that the fan motor is properly
connected to the PCB as shown in the
electrical wiring diagram.
Check that the fan motor is not locked.
Check that the fan motor is not
damaged and, if necessary, replace it.
E8
OF
O
Combination between outdoor unit and
indoor units is not correct.
Fan is stopped and flap is closed.
Check that you have selected, during
the installation of the system, a proper
combination between outdoor unit
and indoor units.
Check that none of the indoor units
of the system has a communication
error. If present, first solve this error.
NOTE: If the trouble is not solved with the above actions, contact your service centre.
O = LED OFF
●
= LED ON
F = Flashing LED
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