Check
whether
the
Ignition and
Ionization Electrode
distance
s are
correct
Adjust ignition electrode
distance accordig to
service manuel
dimensions info.
Press the ''Reset'' button.
NO
Shut down
the power of
the
boiler
. Measure the
resistance between
connecting
pins of gas valve. Check whether
it is in the range of
110-120 Ohm
Replace the gas
valve
.
Dismount the gas
valve connector. Connect the
power to the
boiler
. Check
whether the resistance at the connector
ends coming from the circuit board is in
the range of 23-25 V when the
boiler
is trying to ignite.
Replace the
main board.
NO
NO
YES
YES
Check the CO2 values
at maximum and minimum
capacit
ies
. Check whether
CO2 value
s are
stable when
the boiler same
capacity.
YES
Replace the gas
valve
.
NO
E02
''FALSE FLAME
SIGNAL''
Press ''Reset'' button.
Check whether error is
solved.
Replace
the main
board.
NO
25
