We are out on our 1st major voyage in our New Slingthot 32QB. Everything is going fine, except that we needed the AC for the first time last night and it does not appear that the AC is producing cold air. We cycled through Auto/Lo/HI on the thermostat and it seemed that no cold air was being produced over 2-3 hours. Outside air temperature was only about 80 degrees. Agian, the fan runs, the microwave works, we are plugged into 30 AMP? What to do? What could be wrong?