Complaints of noise - 5 Emergency

Chaffoteaux Complaints of noise - 5 Fault Code

Also written as COMPLAINTSOFNOISE5 — same fault.

The Chaffoteaux Complaints of noise - 5 fault code means: your boiler is experiencing a mechanical fault where the valve responsible for controlling gas flow is not closing properly, which can create unusual noises and requires immediate professional attention.. It appears on 2 Chaffoteaux models in our database.

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description: Gas valve sticking open.
Typical repair cost £250-450 (including labour)

Engineer required

This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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Chaffoteaux models that show the Complaints of noise - 5 fault code

Click a model for the full fault code list and model-specific repair notes.

Source

Chaffoteaux Complaints of noise - 5 fault code information on this page is sourced and cross-checked against the official Chaffoteaux service / installation manuals for each affected model.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 27 April 2026