Emergency
AA2200 on Ariston Genus 27

Your boiler has sensed a flame when there shouldn't be one, which usually means a sensor is confused or the gas system isn't closing correctly.

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

The flame was detected before the gas valve opened

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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