My husband replaced the heat coils and a door switch and a bearing assembly. I coddled that machine for years. I ran up and down stairs restarting it after it quit midcycle. I have burned a lot of calories doing those stairs workouts. I got a Fitbit and we joked about the dryer helping me get my 10,000 daily steps. Well now I'll have to find another source of exercise because the dryer works like new!