Noisy, Hot Shavers Socket

[Greenish]

Hello. Around a year ago we had a new bathroom placed within the house, and everything was done from new. We had a shavers socket installed and this is something we very rarely use. The job was all signed off properly by the electricians and consequent building inspector.

Having used the socket a couple of times over the summer to charge a toothbrush I noticed it makes a rather loud vibrating sound. This is quite audible and can be heard outside the bathroom. It is not a worrying sound, however, it is a consistent buzz / hum / whirr. I have also noticed the fascia of the socket become quite warm, warmer than I would expect. It's not going to burn anyone, but it does feel like it is working hard when switched on.

Is any of this strange or am I just worrying too much? My ultimate concern is leaving something on when we leave the house to find it starts a fire in our absence - but I presume there are safety systems within the socket that would prevent this happening anyway?

Thanks

[Greenish]

Yes its a shavers only socket. Weve just not been using it since we found this. What I haven't done is plug a shaver into it so ill go do that now and see how it goes.

[Greenish]

Terminal Screws? Turn Power off? Sorry, all I know is it is a socket on the wall, anything else is totally unknown to me and I have no confidence to do anything in the way of checking it or touching it.

I am now going through the whole chasing my builder to get hold of the electric company who installed it - which is proving very tedious.