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87
IT
ES
PT
GB
system is cold, top up using the filling tap
until the pressure gauge indicator falls
within the blue range (2).
ONCE FILLED CLOSE THE FILLING TAP.
The blue coloured scale (1) shows the
working field with heating plant functio-
ning.
–
Other faults
(fig. 29/b)
If orange indicator light comes on (SM
probe fault), turn off the boiler and con-
tact your authorised technical service
centre.
If the green flashing indicator light comes
on (fan fault/exhaust pressure switch),
turn off the boiler and contact your autho-
rised technical service centre.
If the flashing orange light comes on (no
water circulation), turn the boiler off and
then turn it on again to restore functio-
ning. If the indicator light comes on again,
turn off the boiler and request assistance
from an Authorised Technical Service
Centre.
If the red flashing LED switches on (post-
c o n d e n s e r f a u l t : d i s c h a r g e s e c t i o n
obstructed or incorrect connection of the
line), disable the boiler and contact an
authorized technician.
Fig. 29/b
Fig. 29/a
Apre
Scala
colore
azzurro
0
30
60
90
120
bar
°
C
0
3
4
1
Scala
colore
blu
OPEN
Light blue
area
Blue area
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