@benbascon could very well be stone dust etc, around the motor and the motor fan. Time to take it apart and to see what`s going on. A teardown or a guide are not available but something like the explosion drawings from this [document|42021] should work to get to it. Once you have it opened, let us know what you find out. Post some good pictures with your question so we can see what you see. [guide|21499]