Excessively noisy burner Emergency
Boiler Fault Code Excessively noisy burner
Also written as EXCESSIVELYNOISYBURNER — same fault.
Reviewed by the BoilerFaultCodes Editorial Team Last reviewed
Fault code Excessively noisy burner 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 making a loud 'roaring' or vibrating noise because the fuel-air mixture is not burning smoothly inside the unit. (As reported on Chaffoteaux Flexiflame 140)
Pick your boiler brand for the Excessively noisy burner fix
Source
Information for the Excessively noisy burner 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