Estate Dryer (by Whirlpool) Model #ETW4400WQ0 Dial sticks on rinse cycle. It will fill fully with water but then the clothes just sit there in the full tub of water (no agitation or any other process runs at that time). We have to manually push in the dial, turn it to spin and pull the dial back out. It doesnt do it all the time but it does it frequently. Any ideas how to keep it from continuing to stick? Thanks!