I've had a couple of sockets (of the same type) at work, where the spring action on the switch has worn loose.
Loose contacts mean higher resistance, heat and scorching.
Alternatively, has the socket switch been used to turn the appliance on/off, rather than its own switch?
If you need to find a tradesperson to get your job done, please try our local search below,
or if you are doing it yourself you can find suppliers local to you.
Select the supplier or trade you require, enter your location to begin your search.
Please select a service and enter a location to continue...
Are you a trade or supplier? You can create your listing free at DIYnot Local