40
Type
No.
Fault
Solution
ALL
88
Internal error
(board component
protection)
- Contact the Technical
Assistance Centre
ALL
89
Unstable combustion
feedback signal error
- Contact the Technical
Assistance Centre
ALL
90
Combustion set
cannot be reached
error
- Contact the Technical
Assistance Centre
ALL
91
Gas valve out of
range
- Recalibrate the gas valve
ALL
92
System has reached
maximum air
correction error (at
the minimum flow
rate)
- Contact the Technical
Assistance Centre
ALL
93
Combustion set
cannot be reached
error
- Contact the Technical
Assistance Centre
ALL
95
Flame signal micro
interruptions error
- Contact the Technical
Assistance Centre
ALL
96
Block due to clogging
in smoke outlet
- Check for blockage in
chimney
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
10.6.1 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 neces-
sary work.
Содержание 8112265
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