BoilerFaultCodes >3.0 bar High
Boiler Fault Code >3.0 bar
Also written as 30BAR — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code >3.0 bar appears across 1 boiler brand and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has detected that the water pressure inside the system has become dangerously high, which can put unnecessary strain on the internal components. (As reported on Vokera Vibe Max)
Pick your boiler brand for the >3.0 bar fix
Source
Information for the >3.0 bar 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