CC.. Low

Boiler Fault Code CC..

Also written as CC — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code CC.. 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 is operating normally and is currently firing up to heat your radiators or provide hot water. (As reported on Ariston Genus 24 MFFI)

Pick your boiler brand for the CC.. fix

Ariston CC.. 3 models

Source

Information for the CC.. 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