BoilerFaultCodes F10 – A10 High
Boiler Fault Code F10 – A10
Also written as F10A10 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F10 – A10 appears across 1 boiler brand and 3 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 sensor that monitors internal water flow, meaning it cannot safely determine if water is moving through the system. (As reported on Ferroli Domiproject)
Pick your boiler brand for the F10 – A10 fix
Source
Information for the F10 – A10 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 27 April 2026