After looking on line for the possible problem, I ascertained it was the switch, not the knob. So I looked to see how difficult it would be to repair, before calling a service tech at $90 an hour. I found your video and it looked pretty easy, even for a 69 year old retired female with not one iota of repair experience. I ordered the part, which I received the next day. I followed the video instructions and wow, my dryer was working again! Faster and lots cheaper than a repairman, Thank you!