7703471.01 (1-03/18)
6
USER Section
(en)
3.3 ERROR MESSAGES AND RESETTING THE BOILER
ERROR description
OPERATION
09
Gas valve connection fault.
Call an authorized SERVICE
technician
10
Outdoor sensor fault .
Call an authorized SERVICE
technician
15
Gas valve error.
Call an authorized SERVICE
technician
20
Central Heating NTC sensor fault.
Call an authorized SERVICE
technician
28-29
Flue NTC heat exchanger sensor fault
Call an authorized SERVICE
technician
40
Return NTC sensor fault.
Call an authorized SERVICE
technician
50
Domestic Hot Water NTC sensor fault
(only for heating-only model with storage boiler).
Call an authorized SERVICE
technician
53
Obstruction in the flue pipe.
Switch off the boiler for a few seconds
If the this fault persists,
call an authorized SERVICE
technician
55
PCB not programmed.
Call an authorized SERVICE
technician
83-84-85
86-87
Communication problem between boiler board and
control unit. Probable short circuit on wiring.
Call an authorized SERVICE
technician
98
Internal error.
Call an authorized SERVICE
technician
109
Pre-circulation alarm (temporary fault).
Call an authorized SERVICE
technician
110
Safety thermostat tripped due to over temperature
(pump probably blocked or air in heating circuit).
Press the RESET (R) button for at least 2 seconds
If the this fault persists,
call an authorized SERVICE
technician
118
Hydraulic pressure too low.
Refill the heating system by open the cold water tap
(section 4: central heating system pressure)
125
No circulation safety trip
(control performed via a temperature sensor).
Press the RESET (R) button for at least 2 seconds
If the this fault persists,
call an authorized SERVICE
technician
128
Loss of flame.
Press the RESET (R) button for at least 2 seconds
If the this fault persists,
call an authorized SERVICE
technician
130 - 131
Flue NTC sensor tripped due to over temperature.
Call an authorized SERVICE
technician
133
Ignition failure (5 attempts).
Press the RESET (R) button for at least 2 seconds
If the this fault persists,
call an authorized SERVICE
technician
134
Gas supply valve blocked.
Press the RESET (R) button for at least 2 seconds
If the this fault persists,
call an authorized SERVICE
technician
135
Internal error.
Call an authorized SERVICE
technician
160
Fan fault.
Call an authorized SERVICE
technician
162
Flue pressure switch (contact open)
Call an authorized SERVICE
technician
317
Incorrect power supply frequency.
Incorrect power supply frequency.
321
NTC domestic hot water sensor faulty .
Call an authorized SERVICE
technician
384
Fault flame (parasitic flame).
Press the RESET (R) button for at least 2 seconds
If the this fault persists,
call an authorized SERVICE
technician
385
Input voltage too low.
Call an authorized SERVICE
technician
To RESET the boiler press the button (
) for at least 2 seconds.
3.4 OPERATING MODES
SYMBOL
DISPLAYED
OPERATING MODE
To enable the appliance in
DHW
-
Heating
or
Heating only
press
repeatedly
and choose one of the three available modes.
To disable the boiler operating modes whilst keeping the
frost protection
function enabled, press
for at least 3 seconds. Just the symbol appears
on the display (the display backlighting flashes if the boiler is blocked).
DHW
DHW & HEATING
HEATING ONLY
