Viessmann 0D Fault Code
The Viessmann 0D fault code means: your boiler's burner has shut down for safety because it failed to light or stay lit correctly.. It appears on 1 Viessmann model in our database.
Technical description: Burner control switches to lockout
DIY fix possible
Check if your fuel tank has run out of oilPress the illuminated reset button on the burner control box onceEnsure any external fuel valves are fully open
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Viessmann models that show the 0D fault code
Click a model for the full fault code list and model-specific repair notes.
Source
Viessmann 0D fault code information on this page is sourced and cross-checked against the official Viessmann service / installation manuals for each affected model.
Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026