I may have found the real source of my problem today. And it has nothing to do with the Edision. It looks like when my dish goes to the eastern extreme of its USALS journey, then the flaky RG-6 connector on the cable at the motor gets "exercised". This unreliable connection may be just enough to cause intermittent delivery of voltage to the motor. Also, it could explain why lately sometimes I'll be watching a channel and the signal just disappears...then reappears. I need to change the cable which is an easy fix when the weather improves.