Hi All. I had the Volvo a/c retrofit kit installed by an independent Volvo specialist. It was decent, though I had been wondering about adding an electric fan in front of everything, for better cooling (That was *supposed* to be my fun, easy project around now). But now, it seems that the system has leaked out--The compressor comes on, and I hear something hissing/whining through the system, but cooling ain't hap'nin'.

I hear so much talk of other (better?) refrigerants.....Freeze 12, etc.... Is this an opportunity to make a change, or should I just bring it back for leak- detection and refilling?? Thank you!