F7

A boiler fault code alone is not a gas or carbon-monoxide emergency. If you smell gas, a CO alarm sounds, or someone has possible carbon-monoxide symptoms, leave and call 0800 111 999 from outside.

Safe check: Do not open the boiler or check electrical components. The guide directs you to a qualified electrician or your electricity provider.

Gas Safe registered engineer: Contact a qualified electrician or your electricity provider, as directed by the user guide.