Boiler Fault Code 12-68

Also written as 1268 — same fault.

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

Fault code 12-68 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 failed to correctly detect its own flame during start-up, likely due to a minor sensor reading inconsistency. (As reported on Daikin D2CND)