14
Yes
Ionisation current builds
Symbol
A
No
Fault EE
Check setting for ionisation
electrode.
Purge the gas line.
Yes
Burner in operation
No
Shuts down below the set
boiler water temperature and
restarts immediately.
Check the flue system for
tightness (flue gas recircula-
tion); check the gas flow
pressure.
Yes
Automatic calibration of
the combustion controller
No
Fault E3
Ensure adequate heat trans-
fer. Press reset button R.
Fault EB Check gap between ionisa-
tion electrode and burner
gauze assembly.
Check allocation of gas type
(coding address 82, gas train
setting).
Check flue system; remove
flue gas recirculation if re-
quired.
Press reset button R.
For further details regarding faults, see page 67.
Testing the static and supply pressure
Danger
CO formation can have serious health implica-
tions.
Always carry out a CO test before and after
work on gas appliances.
Fig. 3 Up to 80 kW
Commissioning, inspection, maintenance
Function sequence and possible faults (cont.)
5839829
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