14
yes
Ignition
no
Fault EE
Check the ignition
module (control
voltage 230 V
across plugs
"X2.1" and "X2.2")
yes
Gas train opens
no
Fault EE
Check the gas train
(control voltage
230 V); check the
gas supply pres-
sure
yes
Ionisation current
builds
Symbol
A
no
Fault EE
Check the ionisa-
tion electrode
adjustment and the
gas line for air-
locks
yes
Burner in opera-
tion
no
Stops below the
set boiler water
temperature and
restarts immedi-
ately
Check the flue gas
system for tight-
ness (flue gas
recirculation),
check the gas flow
pressure
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5692 843 GB
Summary of Contents for Vitodens 200 WB2C 45
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