I was told I needed a voltage enhancement which costed $561. He did that and my AC unit worked the same as before. Not great. Then after "fixing" that he told me I needed more coolant with a sealant for $1387. Which worked... for now. So the first diagnose didn't fix the problem but I still got charged for it. I wasn't shown the "failed" part. They can tell you anything if you don't know HVAC, which I don't. but I do have common sense. Bottom line is, it's over 100 degrees out so you are at their mercy and they know it.
