Mesa Rewind was very helpful. I brought them in a failed motor and within an hour and a half I had the diagnosis. The price on the new motor I needed was very reasonable as well. The technician didn't charge for checking my old motor, or for swapping over my pulley. When I got back to my shop and installed it the new motor initially didn't work, and when I called he told me the procedure to check the rest of my circuit. Had it up and running a couple minutes later. (I learned something about 3 phase AC today). read more