I have a whirlpool dryer that isn't working right it squeeks really bad when you first start it and you have to hold the button down to get it to start you used to just have to push it once. Also I have to run the loads through a few times before they get dry I know the burner is working properly and it is heating up just fine its just not running long enough. Also we started it and it shut off about half an hour later and the timer only moved ten minutes and when you try to restart it the dryer buzzes like its done can anyone help