Hi I opened the pool the other day and the pilot lit but heater would not ignite. I was messing with it and disconnected one of the yellow wires on the millivolt probe thermistor that connects to the I suppose mother board and it fired up. It stayed lit but only shut off when the pool pump shut off. I ordered a new millivolt probe and replaced it. Well that didn't solve my problem but even worse when I disconnect one of the yellow wires now it don't light. Any ideas tips or suggestions would be great.