E94 High

Boiler Fault Code E94

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E94 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 is struggling to maintain a steady flame because it either isn't receiving enough gas or it is drawing in its own exhaust fumes. (As reported on Warmhaus Enerwa / Priwa)

Pick your boiler brand for the E94 fix

Source

Information for the E94 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