Boiler Shutdown High
Boiler Fault Code Boiler Shutdown
Also written as BOILERSHUTDOWN — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Boiler Shutdown 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 detected an internal safety issue and has shut itself down to prevent any damage or danger, meaning you currently have no heating or hot water. (As reported on Ariston Micro Combi 27 MFFI)
Pick your boiler brand for the Boiler Shutdown fix
Source
Information for the Boiler Shutdown 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