I have a Hobbywing 10/BL120 ESC on my pump. Please hold the "you're a bonehead" comments till the end. Twice now I have overheated my ESC trying to get my pump working. At least I think it is overheating. As soon as I give it power the red light blinks several times and then it goes to counting through the numbers on the green light. I can't enter program mode or anything. The second time it overheated so bad it melted the solder on one of the connectors. There is nothing in the trouble shooting section of the manual that matches these error light sequence. 1) If it is true that the ESC is triggering its overheat safety and shutting down, is there a way to reset it or do I have to wait hours for it to cool down and reset? The first time that the pump got bound up and did this, I left the ESC for a couple hours and seem to work later in the evening. 2) (More of pump question) This is a brand new pump and housing. I saw some scrape marks on the impeller and gently sanded down the impeller height. I took off about a millimeter of height. Haven't been able to test it though. However, yesterday, after the ESC shutdown the first time, I ran the pump out of the housing and ran beautifully. I held the housing and motor together by hand and it ran beautifully. I'm guessing I screwed the two together two tight and that is causing the binding. Is there anything you can think of that I am missing? Its a BC pump.