A24 High

Boiler Fault Code A24

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code A24 appears across 2 boiler brands and 4 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has stopped working because the fan that removes waste gases cannot spin at the correct speed. (As reported on Vokera Condexa Pro)

Pick your boiler brand for the A24 fix

Source

Information for the A24 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