How much does it cost to fix Chaffoteaux error code Excessively noisy burner?

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

Excessively noisy burner Emergency

Chaffoteaux Excessively noisy burner Fault Code

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

Your boiler is making a loud 'roaring' or vibrating noise because the fuel-air mixture is not burning smoothly inside the unit.

Also written as EXCESSIVELYNOISYBURNER — same fault.

The Chaffoteaux Excessively noisy burner fault code means: your boiler is making a loud 'roaring' or vibrating noise because the fuel-air mixture is not burning smoothly inside the unit.. It appears on 1 Chaffoteaux model in our database.

Technical description: Pump noise or vibrating, heat exchanger partially blocked, over-gassed, dirty burner bars, or burr on injectors.

Typical repair cost £150-300 (including labour)

Engineer required

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

Find a Gas Safe engineer

Search the official register for a qualified engineer in your area.

Gas Safe Register →

Chaffoteaux models that show the Excessively noisy burner fault code

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

Flexiflame 140 Repair: £150-300

Source

Chaffoteaux Excessively noisy burner 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