BoilerFaultCodes E01-886 High
Boiler Fault Code E01-886
Also written as E01886 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code E01-886 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 failing to detect the flow of water needed to fire up and provide heating or hot water. (As reported on Worcester Bosch 24i RSF)
Pick your boiler brand for the E01-886 fix
Source
Information for the E01-886 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