Emergency
8.8 on Chaffoteaux Britony II 50FF

Your boiler has detected that the main gas control knob or internal valve is not moving or operating as it should, which is preventing the boiler from firing up safely.

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

Gas control tap stiff (User’s)

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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Related fault codes

8.1View →

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