A plug circuit that keeps tripping is one of the most common electrical callouts we get across Johannesburg — and most of the time, a few minutes of methodical checking points straight at the cause. Here is how to read it.
The four usual causes
- A faulty appliance — a kettle, heater, old extension lead or charger with an earth or short fault. The most common cause by far.
- An overloaded circuit — too many high-draw appliances on one circuit exceeding its rating.
- Moisture — water in an outdoor or bathroom socket leaking current to earth.
- A wiring or socket fault — a damaged cable or deteriorating socket, which trips with nothing even plugged in.
The 2-minute self-test
Unplug everything on the affected circuit, reset the breaker, then plug appliances back in one at a time until it trips. The last appliance is your culprit. If it trips with nothing plugged in, the fault is in the wiring or a socket — that is an electrician's job.
Do not just keep resetting it
The breaker or earth leakage is protecting you. If it keeps tripping, there is a real fault — and warm sockets or any smell of burning means stop and call an electrician now.
When it is an overload
If the trip happens when several high-draw appliances run together, the fix is redistributing the load or adding a dedicated circuit at the DB board. We trace the real cause with fault finding rather than guessing. Book a callout.