D.061 High

Vaillant D.061 Fault Code

Also written as D061 — same fault.

The Vaillant D.061 fault code means: your boiler has struggled to light successfully multiple times recently, causing it to protect itself by temporarily stopping the ignition process.. It appears on 7 Vaillant models in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: No. of shut-downs in ign. flame controller
Typical repair cost £120-250 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Vaillant models that show the D.061 fault code

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

Source

Vaillant D.061 fault code information on this page is sourced and cross-checked against the official Vaillant service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026