How much does it cost to fix Viessmann error code Vitodens 100-W?

Typical repair cost for the Viessmann Vitodens 100-W fault is £100-350 including labour.

Vitodens 100-W High

Viessmann Vitodens 100-W Fault Code

Q: What does the Viessmann Vitodens 100-W fault code mean?

Your boiler has stopped heating because the burner has shut down to prevent damage, often due to a communication error between the internal components.

Also written as VITODENS100W — same fault.

The Viessmann Vitodens 100-W fault code means: your boiler has stopped heating because the burner has shut down to prevent damage, often due to a communication error between the internal components.. It appears on 5 Viessmann models in our database.

Technical description: Burner blocked

Typical repair cost £100-350 (including labour)

DIY fix possible

Locate the reset button or dial on the front control panelPerform a manual reset by pressing the reset button for 2-3 secondsWait for the boiler to restart and monitor for 15 minutes to see if the central heating engages

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Viessmann models that show the Vitodens 100-W fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Viessmann Vitodens 100-W 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