BoilerFaultCodes Pressure Gauge exceeds 3 bar High
Boiler Fault Code Pressure Gauge exceeds 3 bar
Also written as PRESSUREGAUGEEXCEEDS3BAR — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Pressure Gauge exceeds 3 bar 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 has too much water pressure, causing the safety valve to release water to prevent damage. (As reported on Baxi 130 HE (range))
Pick your boiler brand for the Pressure Gauge exceeds 3 bar fix
Source
Information for the Pressure Gauge exceeds 3 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 27 April 2026