17
INSTALLER Section (en)
7710400 (01-06/18)
133
Ignition failure (5 attempts)
Check that the gas valve is open and there is no air in the gas
supply circuit.
Check the gas supply pressure.
Check the wire is uninterrupted and makes good contact with
the ame sensing electrode and the ignition switch.
See the actions indicated in E92
Check correct operation of the condensate drainage.
134
Gas valve blocked
Check the gas supply pressure.
Check the integrity and position of the sensing and ignition
electrodes and their wiring (see the ANNUAL SERVICING -
POSITIONING THE ELECTRODES section).
If necessary, replace the electronic board.
135
Internal board error
Check the connections between the gas valve and the
electronic board.
Gas valve connection error
154
Delivery/return probe control test See the actions indicated in E109
160
Fan fault
Check correct operation of the fan.
Check that the fan power supply wiring is connected to the
electronic board.
178
Intervention of safety thermostat for excess temperature in low
temperature system
Check correct operation of the pump and the water circulation
in the low temperature system.
Check the pump power input wiring.
317 162
Incorrect power supply frequency
Check whether the incorrect electric power supply frequency
is due to causes outside the boiler, in which case contact the
power supply company.
384 164
Parasite ame (internal error) Check correct operation of the gas valve.
385 165
Input voltage too low
Input voltage V<175V.
Check whether the power supply reductions are due to
reasons other than the boiler. If so, contact the electricity
provider.
CH = central heating.
(*) External Sensor: cold resistance value: approximately 1 kΩ @ 25° C
(resistance decreases as temperature rises).
(**) NTC delivery, return and DHW sensor: cold resistance value: approximately 10 kΩ @ 25° C (resistance decreases as temperature rises).
(***) NTC fumes probe: cold resistance value: approximately 20 kΩ @ 25° C (resistance decreases as temperature rises).
In the event of a fault, the display backlighting indicates the error code. 5 reset attempts can be performed after which the
boiler shuts down. Wait 15 minutes before attempting to reset the boiler again.
To Next Page
Loading...
