Today, I was messing with my powerhead and I touched the surface of the water, I shocked me. So I tried to isolate the problem by disconnecting the pumps, heaters, and powerhead. The problem is my ranco temp controller. For some reason whenever the temperature probe is in the water, it would leak current into my tank. This controller arrived bare, so I had to wire it myself. I attached a power strip to it to plug in the fans. My wiring looks correct but I'm not sure. Does anyone ever experience this with a Ranco controller? Is there a solution?