Old control broke several knobs (I borrowed from the other features) because it kept getting stiffer to turn. Used a vice grip on knob stub for quite some time and ultimately that broke off, rendering the dryer inoperable. Replacement working fine. I would have had more praise, but I waited too long to order the part.
My dryer model number tag had fallen off, so I guessed on the part and guessed wrong, the first time. Now that I had the unit open, I googled the actual part number and that worked better for me. This site had better price than Amazon and much better pictures, so I knew that I was getting the right part. I was only out postage for returning the first part. I assume I’ve been credited.