I have a pool cover pump to pump the water off my pook cover. Well, the pump is not working. After taking it apart, I find that the circuit board (it detects resistance of the water and tells pump when to come on on go off) is burnt up. There are 2 wires that come out of the pump itself. The 25ft power cord has 3 wires. How can I wire the 3 wire cord directly to the 2 wire pump to make it work? I don't want to do anything wrong here and completely ruin it. I have a replacement coming but it will be 2-3 weeks. I am fairly certain the pump is still good but the circuit board won't allow it to come on.