BoilerFaultCodes F.028 High
Boiler Fault Code F.028
Also written as F028 — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code F.028 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 trying to start up but is failing to light the flame, which means you currently have no heating or hot water. (As reported on Vaillant ecoTEC Plus 832)
Pick your boiler brand for the F.028 fix
Source
Information for the F.028 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