GL 20
FLAME PARASITE
Flame detected after shutdown
Check the wiring and leakage of the gas valve (3) even-
tually replace Gas Valve
At 22
NO air in ignition
stop
Check fan prevalence of at least 60 Pa.
AS 23
AIR IN IGNITION Min pressure switch blocked (closed)
FL 24
Stop Check the operation of the fan (18) and connections
FH 26
SPEED OUT OF CONTROL
Alteration of the fan speed
Fan speed hightest than that required
Check the operation of the fan (18) and connections
AF 27
NO air in ignition
Stop
heck fan prevalence of at least 60 Pa.
CO 28
CHIMNEY OBSTRUCTION
Failure of the heating sensor
Verify the chimney
FP 30
PARAMETERS OF FACTORY
Alteration of the factory settings due to
any electromagnetic interference.
Press the reset button if the fault does not clear, replace
the board
LL 32
Mains voltage < 190 Vac Check that the mains voltage is <190 Vac, if the mains voltage
is correct replace
the control board.
Sr
REQUEST FOR MAINTENANCE
After 10,000 switching On or 2,000
hours of operation of the burner, boiler
needs servicing
The blink code (Sr) does not preventthe normal operation
of the boiler.
Service the appliance and subsequently reset the counter
by selecting “Cr” from the parameters menù and introducing
the relevant resetting code.
200
Check parameter St (if 0) the error will
be detected
Correct the parameter St.
Fr 16
FREEZING
EXCHANGER (24)
Is detected, the freezing of the heat
exchanger. If the heating sensor detects
a temperature below 2 ° C, the burner
ignition is inhibited until the sensor detects
a temperature higher than 5 ° C.
Remove power supply, close the gas valve, defrost the
heat exchanger carefully.
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