BoilerFaultCodes E9277 High
Boiler Fault Code E9277
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E9277 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 shut down because it has detected internal water temperatures that are dangerously high, likely due to a circulation or sensor issue. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the E9277 fix
Source
Information for the E9277 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