BoilerFaultCodes E2 351 High
Boiler Fault Code E2 351
Also written as E2351 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E2 351 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler is currently unable to detect the movement of water, which means it has stopped heating your home to prevent potential damage to its internal components. (As reported on Worcester Bosch Greenstar Ri)
Pick your boiler brand for the E2 351 fix
Source
Information for the E2 351 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 7 July 2026