Quick answer
A hot extension cord is being asked to carry more current than it is rated for. Heaters, kettles and air-fryers routinely exceed what a cheap thin lead can handle, and daisy-chaining adaptors multiplies the problem. This is one of the leading causes of house fires in South Africa. Unplug it now, and treat any extension lead running a heating appliance as a temporary arrangement that needs a permanent fix.
Common causes
- Cord under-rated for the appliance load connected to it
- Daisy-chained adaptors and multi-plugs concentrating several loads
- Worn internal contacts creating resistance and heat
- Cord coiled while under load, so it cannot shed heat
- Damaged flex with broken conductor strands raising resistance
- Permanent use of a lead intended for occasional temporary use
What you can do now
- 1Unplug it immediately and let it cool before handling further
- 2Never daisy-chain adaptors or extension leads together
- 3Never run heaters, kettles or air-fryers on a light-duty lead
- 4Uncoil leads fully when in use so heat can dissipate
- 5Discard any lead that has been hot, discoloured or deformed — do not keep using it
When to call a professional
Have permanent, properly rated wall sockets installed wherever heaters or kitchen appliances are used regularly. That is the actual fix; a heavier extension lead is still a temporary arrangement. An electrician will confirm the circuit can carry the additional load and add a dedicated circuit if it cannot, which is usually the case in older homes.
Typical cost in Johannesburg
New socket fitted R650–R950
Indicative ranges only. We provide written, itemised quotes before any work.
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