BoilerFaultCodes 105e High
Boiler Fault Code 105e
Also written as 105E — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 105e 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 that the internal fan responsible for safely venting fumes outside is not operating correctly, so it has shut down to prevent unsafe operation. (As reported on Baxi Combi 105 HE)
Pick your boiler brand for the 105e fix
Source
Information for the 105e 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