BoilerFaultCodes H07 Medium
Boiler Fault Code H07
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code H07 appears across 1 boiler brand and 10 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 the system is too low, causing it to reduce its output or stop working to prevent damage. (As reported on Worcester Bosch GB162)
Pick your boiler brand for the H07 fix
Source
Information for the H07 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