How much does it cost to fix boiler error code E094?

Typical repair cost for the boiler E094 fault is £150-450 including labour.

E094 Emergency

Boiler Fault Code E094

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code E094 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has detected an unsafe level of carbon monoxide or improper combustion, which means it has shut down to protect your safety. (As reported on Vokera Evolve)

Pick your boiler brand for the E094 fix

Vokera E094 1 model

Source

Information for the E094 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 27 April 2026