Fault display layout
A Fault display
B Fault symbol
C Fault number
D Fault code
The red fault indicator flashes for
every fault.
A fault in the burner control unit
causes the display to show "E".
Constant temperature control unit
In case of faults, the fault code and
fault symbol flashes on the program-
ming unit display
Weather-compensated control unit
The display flashes "Fault" if a fault
message is issued
Plain text fault displays:
&
Burner module
&
Oudoor sensor
&
Supply sensor
&
Boiler sensor
&
Comm.supply sens.
&
Flue gas sensor
&
DHW outlet sensor
&
Room sensor
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