BoilerFaultCodes E01-944 Emergency
Boiler Fault Code E01-944
Also written as E01944 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E01-944 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 is struggling to clear exhaust gases due to an issue with the pipes that lead to the outside, which is preventing the system from running safely. (As reported on Worcester Bosch 24i RSF)
Pick your boiler brand for the E01-944 fix
Source
Information for the E01-944 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