43
EN
Type
No. Fault
Solution
ALL
79
EV2 SGV current
lower limit error
- Check gas valve and board
ALL
80
Fault on the valve
control logic line/
valve cable damaged
- Check gas valve and board
ALL
81
Block due
combustion during
start-up
- Check for blockage in chimney
- Check air diaphragm (for BF
models)
- Check gas calibration
- Bleed the air from the gas
circuit
ALL
82
Block due to
numerous
combustion control
failures
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
ALL
83
Irregular combustion
(temporary error)
- Check for blockage in chimney
- Check air diaphragm (for BF
models)
- Check gas calibration
ALL
84
Flow rate reduced
for (presumed) low
pressure on mains
gas
- Check gas flow rate
ALL
88
Internal error
(board component
protection)
- Check the board is working
- Replace board
ALL
89
Unstable combustion
feedback signal error
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
ALL
90
Combustion set
cannot be reached
error
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
ALL
92
System has reached
maximum air
correction error (at
the minimum flow
rate)
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
Type
No. Fault
Solution
ALL
93
Combustion set
cannot be reached
error
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
ALL
95
Flame signal micro
interruptions error
- Check electrode
- Check board
- Check electric power supply
- Check gas calibration
ALL
96
Block due to clogging
in smoke outlet
- Check for blockage in chimney
- Check the smoke outlet and
electrode position (not touching
the burner)
ALL
98
SW error, board
start-up
- Contact the Technical
Assistance Centre
ALL
99
General board error
- Contact the Technical
Assistance Centre
-
-
Frequent relief valve
intervention
- Check circuit pressure
- Check expansion vessel
-
-
Limited production of
domestic hot water
- Check the diverter valve
- Check that plate heat
exchanger is clean
- Check domestic hot water
circuit valve
8.6.1
Maintenance request
When it is time to perform maintenance on the boiler, the
c
symbol shows on the display.
Contact the technical assistance service to organise the necessary
work.