Quote Originally Posted by pepi View Post
With the loss of the ground the circuit is open, even if the fan could act as a generator the output would go no where the circuit is open.
No, a stray voltage can still be induced and backfed up the positive side, essentially out of phase even tho' it's not AC current. The fans could potentially pulse feed but I don't fully believe it's happening, This same basic effect happens when you run spark plug wires parrallel to each other. It was so prominent that on ford v8's of the 50's, 60's and 70's one wire on each side of the motor was intentionally placed wrong in the wire seperator to break the voltage spike and false fire the plug!

I was searching if someone here had this experience as I have read about it on one of the forums I frequent.