Ummm, well, u got me there...I hope you didn't burn anything up if you left it on too long with reversed polarity flowing through the board. A soon as I saw mine wasn't working right, I pretty much knew what was up, so I switched the wires and all was good, but if it's still doing the same thing, I don't know what else to tell ya, sorry dude, I did what I could
If I think of something else, I'll tell you first thing.
Russ