F.707 High
Boiler Fault Code F.707
Also written as F707 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.707 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's control panel has lost its connection to the internal computer, meaning it can no longer send instructions to heat your home. (As reported on Vaillant ecoTEC Plus 832)
Pick your boiler brand for the F.707 fix
Source
Information for the F.707 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