Excessively noisy burner - 2 High

Chaffoteaux Excessively noisy burner - 2 Fault Code

Q: What does the Chaffoteaux Excessively noisy burner - 2 fault code mean?

Your boiler is making loud banging or roaring sounds because the internal parts that mix and burn the gas have become clogged with debris, causing an uneven flame.

Q: How much does it cost to fix Chaffoteaux error code Excessively noisy burner - 2?

Typical repair cost for the Chaffoteaux Excessively noisy burner - 2 fault is £150-300 including labour.

Also written as EXCESSIVELYNOISYBURNER2 — same fault.

The Chaffoteaux Excessively noisy burner - 2 fault code means: your boiler is making loud banging or roaring sounds because the internal parts that mix and burn the gas have become clogged with debris, causing an uneven flame.. It appears on 2 Chaffoteaux models in our database.

Technical description: Dirty burner bars.

Typical repair cost £150-300 (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 Excessively noisy burner - 2 fault code

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

Source

Chaffoteaux Excessively noisy burner - 2 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