Boiler Fault Code D.094

Also written as D094 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code D.094 appears across 1 boiler brand and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler's internal memory of past errors has been successfully wiped, which is a housekeeping task rather than a sign of a new fault. (As reported on Vaillant ecoFIT Pure 830)