BoilerFaultCodes 224 High
Boiler Fault Code 224
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 224 appears across 1 boiler brand and 11 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 a safety sensor has detected that it is getting far too hot, likely due to a blockage or a pump failure. (As reported on Worcester Bosch Greenstar 8000 Life/Style)
Pick your boiler brand for the 224 fix
Source
Information for the 224 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