Having an issue with my Meyer 750S tailgate spreader. We are using rock salt in it and after some initial issues with jamming and throwing the red light (wed just manually spin the plate backward and it would clear it), it worked well so far until today. I turn it on and it displays the normal lights on the controller, the vibrator goes fine, but it wont seem to start spinning on its own. So I jump out, give it some manual turns and it starts again so I jump back in and salt a bit then notice I'm not putting anything else out and sure enough it just kind of gave up. So this continues until I loose my patience, no red error light. Any ideas ? Is the motor gone ? Thanks in advance!