My hf cleaner went belly up recently, I found that there was a fuse that was blown on the board so I replaced it and when I plugged it all back in, smoke, smoke everywhere. I unplugged that thing faster that you could say spit. Before I couldn't visably see anything wrong. Mine died because the design is horrible and the board is on the very bottom and the case filled with water, and you know where this is going. so I have a el cheapo 2.7 l coming from the bay. I don't think that mine was worth trying to get someone to fix it. I however would be interested if someone could make it work without having to use the board. Stuff is too complicated nowadays.