BoilerFaultCodes 416 High
Boiler Fault Code 416
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code 416 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 shut down because it thinks a safety sensor in the flue pipe is not fitted correctly, preventing the system from monitoring exhaust gases safely. (As reported on Viessmann Vitodens 100-W B1GA)
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 7 July 2026