529 High

Boiler Fault Code 529

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code 529 appears across 1 boiler brand and 2 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning Your boiler has identified a problem with the fan motor, meaning it cannot safely clear waste gases and has shut down to prevent damage. (As reported on Ideal Response SE)

Pick your boiler brand for the 529 fix

Ideal 529 2 models

Source

Information for the 529 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