14
EG
ERROR
LEDS
OPERATION TIMER STANDBY
POSSIBLE CAUSE
SYSTEM BEHAVIOUR
SOLUTION
E4
F
F
O
Defective or not connected indoor coil
te
mperature sensor.
Fan is stopped and flap is closed.
The system restarts automatically
as soon as the s
ensor is repaired.
Check that the sensor is properly
connected to the PCB as shown in
the electrical wiring diagram.
C
he
ck
th
at
th
e s
en
so
r i
s n
ot
d
am
ag
ed
and, if nec
essary, replace it.
E5
F
O
F
Defective or not connected room air
temp
erature/humidity sensor.
Fan is stopped and flap is closed.
The system restarts automatically
as soon a
s the sensor is repaired.
Check that the sensor is properly
connected to the PCB as shown in
the electrical wiring diagram.
C
he
ck
th
at
th
e s
en
so
r i
s n
ot
d
am
ag
ed
and,
if necessary, replace it.
E6
O
F
F
Fan motor error.
Fan is stopped and flap is closed.
The system restarts a
utomatically
after some seconds.
C
he
ck
t
ha
t t
he
f
an
m
ot
or
is
p
ro
p
er
ly
co
nn
ec
te
d t
o t
he
P
C
B
a
s s
ho
w
n i
n t
he
electrical wiring diagram.
Check that the fan motor is not locked.
Check that the fan motor is not
damag
ed and, if necessary, replace it.
E8
O
F
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
er
ror. If present, first solve this error.
NOTE: If the trouble is not solved with the above actions, contact your service centre.
O = LED OFF
l
= LED ON
F = Flashing LED
