How much does it cost to fix boiler error code Excessively noisy burner (1)?

Typical repair cost for the boiler Excessively noisy burner (1) fault is £120-250 including labour.

Excessively noisy burner (1) Emergency

Boiler Fault Code Excessively noisy burner (1)

Also written as EXCESSIVELYNOISYBURNER1 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 27 April 2026

Fault code Excessively noisy burner (1) 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 is burning fuel at an incorrect rate, which is causing the loud noise and indicates the mixture is not balanced correctly for safe operation. (As reported on Chaffoteaux Flexiflame 140)

Pick your boiler brand for the Excessively noisy burner (1) fix

Chaffoteaux Excessively noisy burner (1) 2 models

Source

Information for the Excessively noisy burner (1) 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