BoilerFaultCodes 249 High
Boiler Fault Code 249
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 249 appears across 1 boiler brand and 5 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler's internal computer is experiencing a temporary communication error, causing it to stop operating as a protective measure. (As reported on Worcester Bosch Greenstar 8000 F)
Pick your boiler brand for the 249 fix
Source
Information for the 249 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 31 August 2026