Medium
8.13 on Chaffoteaux Britony II 30FF

Your boiler is likely making an unusual sound because the water isn't flowing through it correctly, often due to a buildup of debris or trapped air.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Book a service

This fault should be looked at by a Gas Safe engineer within the next week or two. It may get worse if left.

What the manual says

Manufacturer manual

Heating Body Noise

From this model's manual
Verified against the Chaffoteaux Britony Ii 30ff installation & service manual.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

DIY fix possible

Check that your system pressure is between 1.0 and 1.5 barBleed your radiators to remove any trapped airEnsure all radiator valves and internal bypass valves are fully open

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Related fault codes

8.11View →8.12View →8.14View →

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