Boiler Fault Code 14 kW

Also written as 14KW — same fault.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026

Fault code 14 kW 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 is displaying its power output rating rather than a fault code, which often indicates that the internal electronics are failing to recognise the system's operational status. (As reported on Malvern 20/26)