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.
Technical description: Gas valve sticking open.
Engineer required
This fault requires a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.
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Gas Safe Register →Chaffoteaux models that show the Complaints of noise - 5 fault code
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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