Operating instructions

38
Yes
Ionisation current
builds
Symbol
A
No
Fault EE Check the ionisa-
tion electrode ad-
justment 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 sys-
tem for tightness
(flue gas recircula-
tion); check the gas
flow pressure
Yes
Automatic calibra-
tion of the com-
bustion controller
No
Fault E3 Ensure adequate
heat transfer.
Press reset button
R.
Fault Eb Check gap be-
tween ionisation
electrode and
burner gauze as-
sembly.
Check allocation of
gas type (coding
address 82, gas
train setting).
Check flue system;
remedy flue gas re-
circulation if re-
quired.
Press reset button
R.
For further details on faults, see
page 110.
Commissioning, inspection, maintenance
Further details regarding the individual steps
(cont.)
5772 909 GB