BoilerFaultCodes F10 to F22 High
Boiler Fault Code F10 to F22
Also written as F10TOF22 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F10 to F22 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's internal computer has encountered a serious error and is unable to manage its own operations properly. (As reported on Ferroli Maxima 35 S)
Pick your boiler brand for the F10 to F22 fix
Source
Information for the F10 to F22 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