Boiler Fault Code Safety Shut-off

Also written as SAFETYSHUTOFF — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026

Fault code Safety Shut-off appears across 1 boiler brand and 11 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has performed a self-diagnostic check and stopped working because it detected an internal error that requires a reset or professional inspection. (As reported on Ariston Euro Prisma 24)