Boiler Fault Code 110˚C

Also written as 110C — same fault.

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

Fault code 110˚C 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 sensed that the exhaust gases are getting too hot and has shut itself down as a safety precaution. (As reported on Biasi Activa)