BoilerFaultCodes High Pressure Switch Operated High
Boiler Fault Code High Pressure Switch Operated
Also written as HIGHPRESSURESWITCHOPERATED — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code High Pressure Switch Operated 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 detected that the water pressure inside the system is dangerously high, leading it to shut down automatically to prevent damage. (As reported on Ideal HP290)
Pick your boiler brand for the High Pressure Switch Operated fix
Source
Information for the High Pressure Switch Operated 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