BoilerFaultCodes 416 High
Boiler Fault Code 416
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 416 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.
Most common meaning Your boiler has experienced an internal computer error and cannot safely operate the heating or hot water until the main control parts are checked. (As reported on Ideal Ideal Classic SE15P FF)
Pick your boiler brand for the 416 fix
Source
Information for the 416 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