BoilerFaultCodes F.080 Medium
Boiler Fault Code F.080
Also written as F080 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.080 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 is struggling to accurately measure the temperature of the water coming into your home, which may result in your hot water not being heated to the correct temperature. (As reported on Vaillant ecoTEC plus)
Pick your boiler brand for the F.080 fix
Source
Information for the F.080 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