My dryer was heating fine but not sensing the moisture levels accurately. As a result, the dryer would shut off while the clothes were still damp. I postponed the repair because I thought the problem couldn't possibly be a couple of metal sensor bars. I was wrong, replacing the bars fixed everything. So easy I didn't even watch the YouTube video.
1. Buy two sensor bars, not one
2. Remove five screws
3. Remove the friction connectors
4. DO NOT let the connectors and wires drop into the guts of the dryer, (if you do it will take an extra 30 minutes and two more hard to reach screws; care to guess why I know this?)
5. Pop-out the old bars and pop in the new ones
6. Attach the friction connectors
7. Replace the five screws (or seven if you dropped the connectors)