I Just bought stack w/d unit used, don't know how old it is, I first had to repair the start switch, and thought I was good, then the first load I tried drying the dryer cut off after 1 or 2 minutes. I tried to turn it back on, and just got the starter noise. After trying to start it a few times the starter noise stopped completely. I unplugged it and plugged it back in and it started again after a few minutes, but repeated the same exact thing. I did smell a very slight electrical or burning smell, but just slight. I was thinking maybe it's some kind of safety switch stopping the motor if it gets too hot, but I don't know much about this. I would really apreciate any advice, I don't even have a manual for this unit. model # 417.99680210