BoilerFaultCodes 912 High
Boiler Fault Code 912
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 912 appears across 1 boiler brand and 3 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has shut down because it believes the internal water pressure is too low or it is getting too hot inside. (As reported on Ideal Ideal Classic SE15P FF)
Pick your boiler brand for the 912 fix
Source
Information for the 912 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