Plug socket not working? What to check
By Azzeddine Kebbi, NAPIT-registered electrician and director of Kebbi Electrical Services · Updated 10 November 2026
When a plug socket stops working, it is usually a tripped RCD or breaker, a blown fuse in the plug, or a fused spur that has been switched off. Here is what to check, in order.
First, stay safe
- If the socket is scorched, cracked, crackles or smells of burning, stop using it and switch off at the consumer unit.
- Do not take the socket off the wall.
What to check
- Plug the appliance into another socket. If it still does not work, the problem is the appliance or its plug fuse.
- Try a different appliance in the dead socket.
- Check the consumer unit for a tripped RCD or breaker and reset it once.
- Look for a switched fused spur nearby, common for kitchen appliances, and check it is on and its fuse is intact.
- Check whether other sockets in the same room are also dead.
Likely causes
Tripped RCD or breaker
Reset it. If it trips again, unplug everything and try again one by one.
Blown plug fuse
Replace with the right rating for the appliance.
Loose connection
A loose wire inside the socket or elsewhere on the circuit. Needs an electrician.
Faulty socket
Sockets wear out, especially ones used for heaters and kettles.
Common questions
Why has one plug socket stopped working?
Often a loose connection in that socket or a nearby one on the same circuit, or a worn-out socket. If the breaker is on and the plug fuse is fine, call an electrician.
Why have several sockets stopped working?
Usually a tripped RCD or breaker. If the board looks fine, there may be a broken connection on the circuit.
Is a dead socket dangerous?
It can be. A loose connection can overheat. If there is any sign of heat or burning, switch off and get it checked.
Can I replace a plug socket myself?
It means working with mains wiring. If you are not competent, use a registered electrician who will also test the circuit.
Socket still dead?
We trace faults, fix loose connections and replace damaged sockets. See our electrical installations and repairs.