E96 High

Boiler Fault Code E96

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code E96 appears across 3 boiler brands and 3 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 issue with how exhaust gases are leaving the flue or a problem with the air-fuel mixture, causing it to shut down for safety. (As reported on Warmhaus Enerwa)

Pick your boiler brand for the E96 fix

Biasi E96 1 model Keston E96 1 model Warmhaus E96 1 model

Source

Information for the E96 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