BoilerFaultCodes 277 High
Boiler Fault Code 277
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 277 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 that it is getting too hot and has automatically paused to prevent damage, but it requires professional attention to identify why it isn't cooling down properly. (As reported on Worcester Bosch Greenstar CDi Compact)
Pick your boiler brand for the 277 fix
Source
Information for the 277 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