6P High

Boiler Fault Code 6P

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 6P 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 is struggling to ignite because the starting component is staying on longer than it should to try and get the flames going. (As reported on Buderus 600-28C)

Pick your boiler brand for the 6P fix

Buderus 6P 1 model

Source

Information for the 6P 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