E2223 High
Boiler Fault Code E2223
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E2223 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 lost connection with a internal sensor that monitors water temperature, meaning it cannot safely heat your home until the connection is restored. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the E2223 fix
Source
Information for the E2223 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