How do I get my Bathroom light to work gain?

For the life of me, I can't get my Legrand Shaver Light to work in my bathroom-I tried to put it on 3 days ago by using the pull cord and it just wouldnt work. I've tried everything I can think of and have checked it thoroughly (obviously turning off the electric supply) and now, the left side of the light appears warm to the touch. Please can any suggestions be made-should I just buy another light?