Emergency
Safety lockout LED on Halstead Finest Gold

Your boiler has detected that it is running too hot and has automatically turned itself off to prevent damage or potential danger.

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

Continuous light indicates an overheat condition has occurred and the appliance has shut down.

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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