BoilerFaultCodes E01-945 Emergency
Boiler Fault Code E01-945
Also written as E01945 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E01-945 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 issue with the pipes that vent exhaust gases outside, meaning it cannot safely clear its fumes. (As reported on Worcester Bosch 24i RSF)
Pick your boiler brand for the E01-945 fix
Source
Information for the E01-945 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