Emergency
80 on Atag E Range

Your boiler has automatically turned itself off because the exhaust fumes leaving the unit have become dangerously hot.

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.

What the manual says

Manufacturer manual

Maximum flue gas temperature has been exceeded (if present). The block will not be cancelled until the flue gas temperature has lowered to a correct figure.

From this model's manual
Verified against the Atag E Range Combi installation & service manual, page 37.
Plain-English guidance below. Severity, DIY steps, costs and parts are our interpretation to help you act, not text from the manual.

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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