Complaints of noise (1) Emergency

Boiler Fault Code Complaints of noise (1)

Also written as COMPLAINTSOFNOISE1 — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code Complaints of noise (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 receiving too much gas, which is causing it to run inefficiently and create unusual, loud noises. (As reported on Chaffoteaux Flexiflame 140)

Pick your boiler brand for the Complaints of noise (1) fix

Source

Information for the Complaints of noise (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