How much does it cost to fix boiler error code D.076?

Typical repair cost for the boiler D.076 fault is £150-300 including labour.

D.076 High

Boiler Fault Code D.076

Also written as D076 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code D.076 appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's electronic brain is having trouble identifying the specific model type it is installed in, which is preventing it from starting up correctly. (As reported on Vaillant ecoTEC Pro)

Pick your boiler brand for the D.076 fix

Vaillant D.076 4 models

Source

Information for the D.076 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

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