I bought the TP1300LS thickness planer about 1 month ago. It is the first planer I have ever used. It was working great until today. I am hoping someone can help me determine what the problem is. When attempt to load the wood the rollers do not move the material through the planner. I can push the wood in and pull it out the other end, and the cutters do plane the wood. Also, if I raise the cutter heads I can see the roller moving. Any thoughts??? Thanks for you help in advance!