Emergency
8.10 on Chaffoteaux Britony II 40FF

Your boiler's burner is failing to switch off when it should, which could lead to overheating and is a significant safety concern.

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed

Act immediately

Turn off your boiler and stop using gas appliances. Call a Gas Safe engineer now. This fault can be dangerous if ignored.

Technical description

Burner stays on

Engineer required

This is a emergency severity fault. Stop using the boiler and call a Gas Safe registered engineer. Do not attempt gas-related repairs yourself.

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