Wow,

I am surprised that after telling you that the level was checked and one side blows cold that 2 of you would recomend looking at the level or evacing the system. Are you saying it is normal for a system to blow cold on one side if the refridgerent is bad, since I know it's not low, it can only be bad (can it go bad) i guess. Also, Peter, I went to the page that was linked, great info, sadly, you were betting it was a duo-valve, and I don't see any test for that at all. Oh well,

Orlando