How to Inspect Your Home for Electrical Hazards

Electrical problems are not always obvious, but damaged plugs, overheating sockets and unsuitable extension leads can be warning signs. A simple visual check helps you know when to call an electrician.

What can you check safely?

An occasional visual check of accessible plugs, leads, switches and sockets can help you spot problems early. This is not the same as inspecting or testing the electrical installation. Never remove socket fronts, consumer-unit covers or other protective panels to look for faults yourself.

Six warning signs to look for

• Scorch marks or discolouration. Dark marks around a plug or socket can indicate overheating or arcing.
• Heat, buzzing, crackling or a burning smell. Stop using the affected equipment or socket if safe. If there is smoke or fire, leave the area and call 999.
• Frayed or trapped cables. Do not use leads with exposed conductors, split insulation or damage where they pass under furniture or through doors.
• Cracked, loose or damaged fittings. Have damaged sockets, switches, plugs and light fittings assessed rather than attempting a temporary repair.
• Overloaded adaptors or extension leads. Avoid plugging one extension lead into another, and keep high-load appliances connected appropriately.
• Repeated tripping. If an RCD or circuit breaker repeatedly trips, or a fault is suspected, stop using the affected equipment or circuit and arrange an electrician rather than repeatedly resetting it.

What about the consumer unit and RCD?

The consumer unit (often called a fuse box) contains protective devices such as circuit breakers and residual current devices (RCDs). Check only what is visible without opening protective covers. Some RCDs have a user-operated test button; follow the manufacturer’s instructions for when and how to test it.

Do not attempt to prove wiring is dead, test earthing or investigate internal connections with improvised equipment. Those tasks need suitable knowledge, tools and safe procedures.

When should you call an electrician?

If you notice heat damage, unexplained smells, exposed wiring, recurring trips or a socket or switch that is loose or damaged, stop using the affected part of the installation where safe and seek a competent electrician.

Electrical faults can require testing that a visual check cannot provide. For additional household guidance see Electrical Safety First.

Electrical help from HandyExperts

HandyExperts can arrange a suitable electrician to inspect and diagnose electrical concerns. Call 0330 912 2323 to discuss the work and current availability.