BoilerFaultCodes 224 V High
Boiler Fault Code 224 V
Also written as 224V — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 224 V appears across 1 boiler brand and 10 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has switched itself off because it has detected it is getting too hot, usually caused by the water pressure being too low. (As reported on Worcester Bosch Greenstar 8000 Life/Style)
Pick your boiler brand for the 224 V fix
Source
Information for the 224 V 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