Well crap then, I guess I will ponder with the rest of ya
How 'bout you ponder on that sinusnoodle thing. Sounds like something you would know something about and maybe have some links. Maybe you could answer this: Can harmonics effect a motor such as the op's? The only stuff I've found on the net refer to harmonics and the neutral on 120v systems and the neutral on 3 phase systems. I'm guessing they mean the ground on transformers when they refer to the neutral.
You're the one who is a self-admitted guru on motors and since harmonics and sinusnoodles effect motors I'm callin' you out to make some sense on this topic-lessin' you afeared of it, then I'm callin' ya yella!
In response to plainjs, thanks for your input. You are not the first nor only one with these suspicions. Unfortunately, I can't get back to test these theories just yet. I added in the original post that I had shed lighting, which was very vague. In fact, what I had done was shut down approx. half of the total lighting at a control point in the master suite. I did not disconnect power to the lighting panels as you suggest, and I did not measure for DC voltage as above quote recommends.
I have yet to bench test the motors(lots of opinions on this), which I believe will be informative as to whether I am dealing with motor or power supply issues.
whatever the outcome, I'll gladly join you at the bar. how long is the ride from Buffalo?
Thanks FrueCrue , we must think like doctors and eliminate possibilities one step at a time . Good hunting .