Installation Manual

69
5350 485 GB 08/2007
Function sequence and possible faults (cont.)
Burner in operation
For further details regarding faults see the service instructions.
Stops below the
set boiler water
temperature and
restarts immediately
Check the flue gas
system for
soundness (flue
gas recirculation),
check the gas flow
pressure
No
Ye s
Automatic
calibration of the
combustion control
unit
Fault Eb Check the
connecting cable
and the ionisation
electrode. Check
the flue gas
system (flue gas
recirculation)
No
Ye s
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