I have a Beko larder fridge 2 months old and suddenly found that it was not cold inside and have found using a camcorder that the light was staying on when the door was closed. on checking mounting on door which operates the switch,it was dented from the pointed edge of switch. awaiting engineer to call, in the meantime a bit of bluetack on the door mounting is switching the light off and keeping it cold again.suggest you check your door mounting as yours could also be dented.
Jim Thornton, July 2006