ORIGINAL: furloughed ual

The pump is great...one of the best on the market for producing great smoke. The problem is the circuit board. Loosen the Allen screws on the pump casing and pull the pump and control board out. Look at the back of the board. Chances are there is a circuit there that you will see has burnt thru. U can reconnect it by soldering a small connector wire. That sometimes works. The other solution most do is to just use an electric motor ESC and connect that to the positive and negative leads of the pump and run it via the ESC. It will produce great smoke this way. I know it's a pain, but a much better and cheaper solution to throwing it in the trash and buying something else.