2970 High
Boiler Fault Code 2970
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 2970 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 in your heating system is falling much faster than normal, which usually indicates a significant leak or a fault with the pressure sensor. (As reported on Worcester Bosch Greenstar 8000 Life/Style)
Pick your boiler brand for the 2970 fix
Source
Information for the 2970 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