68
Type
No. Fault
Solution
AL
79 EV2 SGV current
lower limit error
- Check gas valve and board
AL
80
Fault on the valve
control logic line/
valve cable damaged
- Check gas valve and board
AL
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
AL
82
Block due to
numerous
combustion control
failures
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
AL
83
Irregular
combustion
(temporary error)
- Check for blockage in
chimney
- Check air diaphragm (for BF
models)
- Check gas calibration
AL
84
Flow rate reduced
for (presumed) low
pressure on mains
gas
- Check gas flow rate
AL
88
Internal error
(board component
protection)
- Check the board is working
- Replace board
AL
89
Unstable
combustion
feedback signal
error
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
AL
90
Combustion set
cannot be reached
error
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
AL
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
AL
93
Combustion set
cannot be reached
error
- Check electrode
- Check outlets
- Check air diaphragm (for BF
models)
- Check gas calibration
AL
95 Flame signal micro
interruptions error
- Check electrode
- Check board
- Check electric power supply
- Check gas calibration
AL
96
Block due to
clogging in smoke
outlet
- Check for blockage in
chimney
- Check the smoke outlet
and electrode position (not
touching the burner)
AL
98 SW error, board
start-up
- Contact the Technical
Assistance Centre
AL
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
4.6.1
Maintenance request
When it is time to perform maintenance on the boiler,
"SE"
shows on the display.
Contact the technical assistance service to organise the
necessary work.