Troubleshooting Fault Display - Viessmann Vitodens 200 Service Instructions Manual

Troubleshooting
Fault display
Fault display layout
A Fault display
B Fault symbol
The red fault indicator flashes for
every fault.
Constant temperature control unit
In case of faults, the fault code and
fault symbol is displayed at the pro-
gramming unit
Weather-compensated control unit
The display flashes "Fault" if a fault
message is issued
66
C Fault number
D Fault code
A fault in the burner control unit
causes the display to show "E".
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