How to Fix Electric Sockets

You plug something in and nothing happens. Before assuming the wall socket needs replacing, there are a few things worth checking — and some warning signs you should never ignore.

What can you check if a plug socket stops working?

If there are no signs of damage, heat or sparking, start with a few straightforward checks:

• Check that the switch on the socket is turned on.
• See whether nearby sockets or lights are also affected.
• If the appliance, plug and lead look undamaged, try the appliance in another socket that you know is working. If it still doesn't work, the appliance itself may be faulty.
• Look at the consumer unit (fuse box) to see whether a circuit breaker or RCD has tripped. You don't need to remove any covers.

A tripped breaker or RCD may explain why the power has gone off, but not what caused it. If it keeps tripping, have the fault investigated rather than repeatedly resetting it.

These checks may help you describe the problem, but they don't establish that a socket or its wiring is safe. Don't remove the faceplate or touch any cables.

Warning signs you shouldn't ignore

Stop using a socket if you notice any of the following:

• Scorch marks, discolouration or melted plastic.
• Buzzing, crackling, sparks or a burning smell.
• A socket or plug that feels unusually hot.
• A cracked faceplate or a socket that's coming loose from the wall.
• Repeated tripping when something is plugged in.

A new faceplate won't necessarily fix what's caused the damage. The socket and the wiring behind it may both need attention.

If there's smoke or fire, get everyone to safety and call 999. Otherwise, keep clear of any socket showing serious damage and switch off the affected circuit only if it's safe to do so. Don't try to pull out a hot or sparking plug.

Why might a socket stop working?

Sometimes the problem is the appliance rather than the socket. A circuit breaker or RCD may also have tripped because of a fault elsewhere on the circuit.

In other cases, the socket may have worn out or a connection behind the faceplate may be damaged or loose. That can interrupt the power supply and, in some cases, cause overheating. You can't reliably tell which is responsible just by looking at the front of the socket.

Can you replace a plug socket yourself?

Replacing a socket involves the household wiring, not just changing a plastic cover. Switching off the socket at the wall doesn't make the connections behind it safe to work on.

Proper isolation and electrical testing require the right equipment and knowledge. A basic plug-in socket tester isn't a substitute for proving a circuit is dead or for testing completed wiring. For socket repairs, particularly where there's damage or overheating, we recommend using a registered electrician.

What about changing a single socket to a double?

It's often possible, but it depends on the existing circuit and the load it can safely support. An electrician can check whether the proposed change is suitable before work starts.

Surface-mounted and flush-mounted sockets involve different types of fitting. Moving a socket or adding one to a solid or stud wall may also mean working near concealed cables. It's worth getting the position and installation checked before any drilling or cutting.

What will an electrician check?

An electrician can work out whether the fault is in the socket, the appliance or elsewhere on the circuit. Depending on what they find, they may replace the socket, repair damaged wiring or investigate repeated tripping. They'll also carry out the relevant inspection and testing before the socket is put back into use.

If you want extra sockets or a different layout, they can advise on suitable positions and whether the existing installation can support the change.

Need help with a faulty socket?

HandyExperts can arrange an electrician to assess faulty sockets or planned upgrades. Find out more about our electrical services, or tell us what you've noticed when you get in touch.