Yes - it works in other sockets.
Yes - have tried other razors in there and they do the same.
No - nothing else has been plugged in there. :-(
I'm guessing I'll try the wires as suggested above, but then buy another unit and hope that works
I've put up with this problem for 25 years (sorry !!!) and its about time I did something about it (although when two electricians have been here to do other work, they have both looked at this and said 'can't see anything wrong'):
When I plug my razor into my bathroom shaver socket, it won't...