I'm not a DIY on this, but wanted to get some expert advice from you guys before the next contractor comes out to look at the issues.
Basically in January my evaporator coil leaked and had it replaced. Everything was fine until about a month ago, when the HVAC system wasn't cooling properly. The originial installers of the evap coil came out and added about 3lbs of freon to the system. All was good until about 3 days ago.
We got back from vacation and noticed the upstairs about about 88 and down was at 83. So I called them back out and they said the system was almost empty and had been running a while. I know this is bad and can pretty much kill the compressor. He did a leak test and found leaks at the service valves. He tightened down the valves as much as possible and filled the system.
He did notice that when filling the high side was not increasing as more freon was going in, so he mentioned that the compressor might be shot.
So..... if the valves are bad can they just be replaced, or does the entire compressor have to replaced.
Also, I'm hoping the next contractor is confident enough to test to see if the compressor is functioning properly... anything I can know to make sure he's testing this properly.
I'd really appreciate any feedback...or possibly any other sites for the information.