You guys were so helpful with my ehiem problem I figured I'd get your thoughts on my Vortex xL. I was using the filter to take water from my 55 gallon tank to (floor) amd put it in my 75 gallon tank (stand). After a while it stopped pumping and I just heard a quiet whirring sound, not the motor churnings, as I usually does. In any event it stopped pumping. I didn't smell any burning so I don't think I burned the motor out. Will this problem likely correct itself if I keep it off for a day or two or do I need to send it in for a repair. It is only four months old.