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".
The display flashes "Fault" if a fault
message is issued
Plain text fault displays:
&
Burner control unit
&
Outside temperature sensor
&
Flow sensor
&
Boiler sensor
&
Mixed flow sensor
&
Cylinder sensor
&
Flue gas sensor
&
DHW outlet sensor
&
Room temperature sensor
&
User fault
Checking and acknowledging faults
Note
If an acknowledged fault is not removed, the fault message will be re-displayed
after 24 h.
Press the following keys:
1. c for the current fault.
2. a/b for further fault messages.
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