The first sign was loud screeching noise. Right there and then i should of opened and checked instead we kept using it. I opened it after it didnt start. I followed there detailed videos to open thr whole dryer and see that the motor had a small piece that cane off off in it that held the belt. I took it to a welder and they put on a similar piece. I also ordered online a pulley and a belt from AppliancePartsPros. If it wasn't because of the way the website and video was set up I'd never be able to have the confidence to open a whole dryer.