BoilerFaultCodes PP6 High
Boiler Fault Code PP6
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code PP6 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has shut itself down because the internal gases have reached an unsafely high temperature to protect the system from damage. (As reported on Grant Vortex)
Pick your boiler brand for the PP6 fix
Source
Information for the PP6 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