BoilerFaultCodes E9220 High
Boiler Fault Code E9220
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E9220 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 an unsafe level of heat or an electrical fault in its safety sensor and has locked down to prevent damage. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the E9220 fix
Source
Information for the E9220 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