Complaints of noise High

Chaffoteaux Complaints of noise Fault Code

Also written as COMPLAINTSOFNOISE — same fault.

The Chaffoteaux Complaints of noise fault code means: your boiler is making unusual noises because of trapped air, poor water circulation, or potential issues with the gas control components.. It appears on 1 Chaffoteaux model in our database.

Call an engineer soon

Book a Gas Safe engineer within 24 to 48 hours. Your boiler may be unsafe or could break down completely if left.

Technical description: 1. Over-gassed. 2. Air in system. 3. Boiler thermostat wrongly set or faulty. 4. Water section spindle sticking. 5. Gas valve sticking open. 6. Dirt/swarf on gas valve facing. 7. Insufficient water flow. 8. Pump noise or vibrating. 9. Heat exchanger partially blocked.
Typical repair cost £150-350 (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 fault code

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

Source

Chaffoteaux Complaints of noise 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 7 July 2026