BoilerFaultCodes 9763 High
Boiler Fault Code 9763
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 9763 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 detect water movement, which usually means the valves that allow water to flow into your radiators are closed or stuck. (As reported on Vokera Maxin)
Pick your boiler brand for the 9763 fix
Source
Information for the 9763 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