Read a lot of posts on here about limp mode from the belt sensor getting tripped and how to reset, but my issue is a little different than what I've seen so far. When I reset the machine runs as it should than a few minutes into running the belt little comes on again. Figuring it was truly a loose belt, I take the cover off again and the sensor is not tripped. I reset with the cover off and again it runs great for a few minutes. Is there another sensor linked to the belt light I should be looking at?