BoilerFaultCodesViessmann 0D Fault Code
The Viessmann 0D fault code means: your boiler has detected an internal communication error and has shut itself down as a safety precaution.. It appears on 13 Viessmann models in our database.
Technical description: Burner control switches to lockout
What causes the Viessmann 0D fault?
This fault occurs when the boiler's internal computer loses the ability to communicate with the components that control the flame. The most common reason is a hardware failure within the burner control unit or a loose electrical connection that prevents the system from safely managing the ignition process.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
Find a Gas Safe engineer
Search the official register for a qualified engineer in your area.
Gas Safe Register →Viessmann models that show the 0D fault code
Click a model for the full fault code list and model-specific repair notes.
- A8 Repair: £120-350
- Vitodens Repair: £150-300
- Vitodens 050-W Repair: £180-450
- Vitodens 100-W / 200-W Repair: £180-450
- Vitodens 111-W Repair: £180-450
- Vitodens 200 Repair: £180-450
- Vitodens 200-W Repair: £180-450
- Vitodens 222-W Repair: £180-450
- Vitodens 333-F Repair: £180-450
- Vitola Biferral Repair: £120-350
- Vitopend 100 Repair: £180-450
- Vitopend 111 Repair: £150-450
- Vitorond 100 Repair: £120-350
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 27 April 2026