How much does it cost to fix Chaffoteaux error code Complaints of noise?

Typical repair cost for the Chaffoteaux Complaints of noise fault is £150-350 including labour.

Complaints of noise High

Chaffoteaux Complaints of noise Fault Code

Q: What does the Chaffoteaux Complaints of noise fault code mean?

Your boiler is making unusual noises because of internal blockages or issues with how it regulates heat or water flow, which can put unnecessary strain on the system.

Also written as COMPLAINTSOFNOISE — same fault.

The Chaffoteaux Complaints of noise fault code means: your boiler is making unusual noises because of internal blockages or issues with how it regulates heat or water flow, which can put unnecessary strain on the system.. It appears on 2 Chaffoteaux models in our database.

Technical description: Over-gassed; Sludge/scale in the heat exchanger; Faulty boiler thermostat; Water section push rod sticking; Gas valve sticking open; Dirt/swarf on gas valve facing; Resistance to water flow; Water filter blocked; Venturi blocked; Wrongly positioned feed and vent; Incorrect inhibitor in system; Pump noisy or vibrating.

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 27 April 2026