Emergency
03 on Alpha Intec 24GS

Your boiler has detected that the gases venting out of your flue are becoming dangerously hot and has shut itself down to prevent damage or fire risk.

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

High flue thermostat temperature - Flue thermostat intervention (flue temperature over 113°C)

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

01View →02View →04View →

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