I have a 1996 Corvette. I had to replace the A/C condenser after road debris put a hole in mine. Everything worked great then I sat the car down for the winter. When I began driving it on occasion in June I noticed that it constantly blows hot air from the floor. I know the A/C works as I hooked up my gauges and had good readings. It is some sort of coolant switch and if so how hard is it to fix?

James