The issue is the micro switch that is in there. There is a very small silver piece that looks like a bowl that has gotten dirty. I know exactly what the issue is. However, if you try to fix it yourself, you may lose that little guy. I hope you have good eyes.
IMO, I work on everything myself and I would just do the work myself. YOu can order a new board and stick it in there. Remember to ALWAYS click the top and not the bottom of the wheel from now on. This is just something that happens after a while. Anything from smoke to moisture can get in that little button and create a bad connection.