33
EN
Type No. Fault
Solution
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.