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Originally Posted by gsodonis
I have the exact same cooling issues as well! My only saving grace is that the AC runs more consistently the hotter it gets outside. In the spring when the temp was in the upper 70's, my issues were the cycling of the compressor. Now that it's in the 90's (in TN), the AC seems to run fine. I'm betting that I have issues in the fall.
This appears to be a common problem. I wonder what result we'd have if we did a poll? There are probably more SVXers with this problem that haven't replied to this post. I'm prepared to offer a reward to the person that correctly diagnoses this problem. It's probably a sensor (or two). The question is - which one?
Has antone out there solved this?
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Since the trinary switch cuts out the compressor with either too much or not enough pressure, and since pressure builds with heat, I'd make a WAG and say you were marginally under-filled. However, this either has to be tested with gauges coupled with ambient temp pressure charts, or do as Beav suggested - drain, vac and refill.