12
1.6
Fault / malfunction codes
If a fault/malfunction is detected during boiler operation, the
message
"AL"
will appear on the display followed by the fault
code.
If you see alarm
“02”
(low water pressure in the system):
– using the pressure gauge (1) check that the pressure in the
heating system, when cold, is
1-1.2 bar
. If the pressure is
less than this, use the external filling device to repressurise
the system to
1-1.2 bar
– ensure that the filling device is turned off after use
– press and hold the
o
R
button for more than 3 seconds
and check whether normal operating conditions are re-
stored.
1
Fig. 6
If you see alarm
“06”
(no flame detected) and
“07”
(safety ther-
mostat intervention):
– press and hold the
o
R
button for more than 3 seconds
and check whether normal operating conditions are re-
stored.
If this operation is not successful,
ONLY ONE MORE ATTEMPT
can be made, therefore:
– close the gas cock
– isolate the power supply
– contact the Qualified Technical Personnel.
OFF
Fig. 7
m
CAUTION
Should you see an alarm not described here, contact a
qualified technical professional
.
2 SHUTDOWN
2.1
Temporary shutdown
To temporarily interupt the boiler operation press and hold the
button
s
for at least one second, once if in "WINTER mode"
n
or twice if in "SUMMER mode"
l
.
"- -"
will appear on the
display the boiler will be in STAND-BY. The boiler anti freeze
function will be enabled.
f
ELECTRICAL HAZARD
The boiler will still be powered.
If the user is away temporarily, for a weekend, short trip etc
and if the outside temperature is at ZERO:
– press and hold the button
s
once if in "WINTER mode"
n
or twice if in "SUMMER mode"
l
to put the boiler into
stand-by
– isolate the power supply
– isolate the gas cock.
OFF
Fig. 8
m
CAUTION
If the outside temperature might fall below ZERO,
since the appliance is equipped with an "antifreeze
function"
– ONLY PUT THE BOILER INTO STAND-BY
– leave the main system switch set to "ON" (boiler
is powered)
– leave the gas cock open.
2.2
Shutting down for long periods
If the boiler is to be left unused for a long period, the following
operations need to be carried out:
– press and hold the button
s
for at least 1 second, once if in
"WINTER mode"
n
or twice if in "SUMMER mode"
l
to
put the boiler into stand-by
"- -"
will appear on the display
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