Dryer would not turn on

I am really not sure because my husband did the repair and it took him no time at all. I know he removed the back panel on the dryer, and the 2 parts were in plain site. He took the old off put on the new part. We turned the dryer on and it worked better than ever! This site is the best for home repairs. My husband was a little leary but we didn't want to buy a new dryer and we live in a remote area with no repair people, so for the low cost of these parts it was well worth it! Will diffently use this site again!!!!!!!!!!