Emergency
02 on Alpha E-Tec R

Your boiler has detected that it is running much too hot and has automatically 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

Overheat safety thermostat or flue thermal fuse (113°) has operated. If the thermal fuse has operated, the cause of its intervention must be repaired and then it must be replaced.

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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