BoilerFaultCodes 6P1 High
Boiler Fault Code 6P1
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 6P1 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 clear exhaust gases out through the flue, so it has safely shut itself down to prevent a build-up of fumes. (As reported on Ariston HS Premium)
Pick your boiler brand for the 6P1 fix
Source
Information for the 6P1 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 27 April 2026