My Plugs Are Not Working — What's Wrong?

What Is a Plugs Not Working Problem?

Dead wall sockets are one of the most common electrical complaints from homeowners. In most cases the cause is straightforward — a tripped circuit breaker, a blown fuse in an older installation, or a single failed socket outlet — but the fix must still be done correctly and safely.

South African homes use BS 546 round-pin sockets rated at 16A. These are robust but can fail due to age, physical damage, or repeated loose connections. In older homes, some plugs may be wired on circuits with inadequate earthing or undersized wiring, which can cause intermittent failures.

It's worth noting that not all plugs in a room are necessarily on the same circuit — in kitchens and bathrooms, dedicated circuits are common, and losing one does not affect the others.

Common Symptoms & Warning Signs

• One or more wall sockets have no power when tested with an appliance
• The circuit breaker for that area of the home has tripped
• The socket feels loose or wobbles in the wall
• Scorch marks or discolouration visible on the socket faceplate
• The socket works intermittently — sometimes it works, sometimes it doesn't
• An appliance that was working stops working when plugged into a specific socket
• Multiple sockets in a row are dead (suggesting a circuit fault rather than a single socket failure)

What Causes a Plugs Not Working Issue?

• Tripped circuit breaker: The breaker protecting this circuit has tripped due to overload or a fault
• Failed socket outlet: The internal contacts of the socket have failed or burned out
• Loose wiring connection: The wires behind the socket have come loose from the terminals, causing loss of contact
• Damaged cable: The circuit cable feeding the socket has been damaged — often from DIY drilling through walls
• Overloaded circuit: Too many high-draw appliances on one circuit caused persistent overheating and failure
• Moisture damage: Damp or water ingress has corroded the socket contacts, common in older homes

A visual inspection can reveal obvious damage, but confirming a wiring fault requires testing with appropriate equipment.

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How Urgent Is This?

A single dead socket is low urgency if you can work around it, but it shouldn't be ignored. A loose connection behind a socket generates heat every time current flows through it, and over time this can cause insulation damage or ignite surrounding materials.

Scorch marks, a burning smell from a socket, or an intermittently sparking socket are high urgency. These indicate active arcing or overheating that can quickly escalate to a fire. Do not use a socket that shows these signs — cover it with tape and call an electrician promptly.

DIY vs Professional Repair

Homeowners can safely check the DB board for a tripped circuit breaker and reset it if found. You can also test different sockets on the same circuit to determine how many are affected, which helps the electrician locate the fault faster.

Replacing a socket outlet, investigating loose connections, or tracing a wiring fault is electrical work that must be done by a registered electrician in South Africa. Socket replacements on fixed installations require compliance with SANS 10142 and may require an updated Certificate of Compliance (COC).

What Professionals Actually Do

The electrician will first use a socket tester or multimeter to confirm whether the socket is receiving supply voltage and whether the earth connection is intact. They'll check for continuity back to the DB board to identify any break in the circuit.

If the socket itself has failed, it will be replaced with a correctly rated and compatible outlet. If the wiring behind the socket is loose or damaged, it will be re-terminated or replaced. The electrician will test the repaired circuit under load before signing off, and will advise if the circuit needs upgrading to handle modern appliance loads.

Property Damage Risks

A loose connection behind a socket creates resistance at the contact point. This resistance generates heat proportional to the current drawn — meaning every time you run a high-draw appliance through that socket, you're heating the back of the wall. Over time this can char woodwork, ignite dust and insulation, and cause a concealed wall fire.

A damaged circuit cable — particularly one nicked by a drill — can arc intermittently for months before causing a visible problem. The heat from arcing can ignite insulation material within the wall cavity long before any external sign appears.

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