there is no heat exchanger and there is no external equilizer.

Trust me I've been doing this for a long time and I'm just as confused as you guys. I know i doesn't make much sense, just looking for Ideas, because this has me stumped as of right now. I'll be back there this weekend. First thing I'm doing is taking entire charge out and re-charging to make sure charge is proper (I did a lot of adding and pulling of charge when I was there the other night) then I'll take full set of readings.