NO YOU CAN NOT FIX IT YOURSELF and from what you have siad it sound's like it is overheating and I don't whant to frighten you but i am not saying it will but it is a small chance of it catching fire tumble dryers are well know for doing this STOP USEING IT And get in touch with white Knight as if it is still new then I WOULD recomend getting White Knight out and have your paper work to hand and your sereal number as well as it could be a batch of faulty dryers I hope this has helped you
Mr S hopwood
January 2005