BoilerFaultCodes F.070 High
Boiler Fault Code F.070
Also written as F070 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.070 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 computer has been reset and needs a specific security code to be re-entered by an engineer to confirm it is configured for your home. (As reported on Vaillant ecoTEC Plus 832)
Pick your boiler brand for the F.070 fix
Source
Information for the F.070 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