250 High
Boiler Fault Code 250
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 250 appears across 2 boiler brands and 6 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler's computer has encountered an internal error and needs a reset or a service technician to investigate the control system. (As reported on Worcester Bosch Greenstar 1000)
Pick your boiler brand for the 250 fix
Source
Information for the 250 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