Emergency
BURNER STAYS ON on Chaffoteaux Britony II 30FF

Your boiler's internal burner is failing to switch off even when you are not using hot water or heating, which suggests a mechanical component is stuck or blocked.

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

i) Air in pipework, ii) Gas valve stays open, iii) Venturi blocked, iv) Dirt on gas valve facing, v) Loose jumper on house stop cock tap, vi) Dirt or foreign matter in water section

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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