<a href=showthread.php?s=&postid=8894815#post8894815 target=_blank>Originally posted</a> by DMBillies
Ryan- Sounds like you're pump just tried to start-up running backwards. That isn't all that uncommon, although it is really annoying... especially if you're power goes out, the pump does it, and you aren't there to start the pump back up when it comes back on.
I've had some of my powerheads do that before (particularly the one feeding my hang-on fuge). The fuges are set-up so that the pump sits vertically and that must cause some problems... I've since fixed the problem by putting a 90 on it. It doesn't take a little hang-on fuge very long to go stagnant if the pump isn't going.