NOISY HEATER High

Boiler Fault Code NOISY HEATER

Also written as NOISYHEATER — same fault.

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed

Fault code NOISY HEATER 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 struggling to process heat correctly, which is causing rattling or banging sounds and suggests internal components are dirty or clogged. (As reported on Potterton Main Mersey Super)

Pick your boiler brand for the NOISY HEATER fix

Source

Information for the NOISY HEATER 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