Hi Pizzaguy - so, I realized that the fan is not coming on at all hence it runs hot just sitting at idle. I replaced the fan and still no luck. 50 AMP fuse or do you still think it is the sensor? I think that the fuse is blown because I can not read the "50" on it like I can on the other one or on the 200 in the same box, but am not sure as I have never seen these mounted type fuses before.. thoughts???