Dryer timer knob does not move

My dryer timer does not move, so it will run until someone stops it. It heats, etc, the only problem is it keeps going and going. The timer / knob does not move in any setting (automatic or timed.) I think I need to replace the timer control, but am worried if that is not the problem, I will have wasted $135 for the part. Any ideas? Thanks!

If it won’t move in TIMED DRY, You need a TIMER!!!:slight_smile: