hi, its more likley that if the little on/off button isnt working that the little pcb in the top of the door is not working (either damaged or disconected) its a bit of nusance to strip the front door out enough to acces it but once your there it should be easy enough to tell if its broken, just take a photo of the connectors befor you remove it or there little chance of getting it replaced properly.
nanotm
December 2009