Emergency
20 on Alpha Intec2 30SE

Your boiler has detected a flame signal when it shouldn't be there, which means it has safely shut down to prevent a potential hazard.

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

Flame sensing fault - False flame detection / Flame detected but gas valve is not open

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

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