Emergency
YELLOW FLUE CONTROL LED on Ariston DIA 80

Your boiler has sensed that exhaust fumes are not leaving the chimney correctly, causing it to shut down for your safety.

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

Flue device control faulty / Flue control probe intervention

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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