Baxi Duo-Tec Compact Instruction Manual For Users And Fitters page 17

133
Ignition failure (5 attempts)
134
Gas valve blocked
Internal board error
135
Gas valve connection error
154
Delivery/return probe control test
160
Fan fault
Intervention of safety thermostat for excess temperature in low
178
temperature system
317 162
Incorrect power supply frequency
384 164
Parasite flame (internal error)
385 165
Input voltage too low
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.
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 flame sensing electrode and the ignition switch.
See the actions indicated in E92
Check correct operation of the condensate drainage.
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.
Check the connections between the gas valve and the
electronic board.
See the actions indicated in E109
Check correct operation of the fan.
Check that the fan power supply wiring is connected to the
electronic board.
Check correct operation of the pump and the water circulation
in the low temperature system.
Check the pump power input wiring.
Check whether the incorrect electric power supply frequency
is due to causes outside the boiler, in which case contact the
power supply company.
Check correct operation of the gas valve.
Input voltage V<175V.
Check whether the power supply reductions are due to
reasons other than the boiler. If so, contact the electricity
provider.
17 7710400 (01-06/18)