Long story short, built the home (split level) in 1999 and had a Bryant central heat & air unit installed (condensor outside and furnace in basement with mercury thermostat in hallway). I thought it was odd that we could never get the house cold in the summer, but could get a 20° difference between outside and inside air.
In 2003 or 2004 had to have freon topped off to get the system to run but could not afford to have proper repairs performed. Same thing in 05, then 06 figuring small leak and was cheaper to just top it off each year.
In 2007 I did some work for a local HVAC company and batered the repairs. They replaced the A coil (rotted out with rust and they let me see the leaks in the coil) with a new unit. Pressure tested the system and everything was supposed to be good to go. Also replaced old thermostat with new White Rogers digital.
I started to notice that the compressor would stop running when it was really hot out, but I could hose down the condensor or turn the thermostat up to shut the system down for 20-30 minutes and the compressor would kick back on.
I lived with that until last year and did a job for another HVAC company and traded out another repair. They said the condensor was to small and recomended replacing with a larger unit. This was late in the season and it seemed to do fine unless it was very hot out and the compressor would stop running. Could cycle the system off for 20-30 minutes and it would kick back on. They adjusted the freon load several times and each time it would work fine (ait ar vents in low 50's) for the rest of the day but would start acting up again a few days later (almost ambient air from vents).
Same company this year comes out because of same problem, different tech this time. He said the system was a little low on freon and put leak stopper on the caps, topped off the system and was on his way. Two weeks later I realise it's doing the same thing. He comes back out, freon is hi this time, lets some out and says everything is good to go. Same problem starts the next day. Comes back out and starts scratching his head. He looks at the coil and says "Oh, this one has a TXV instead of a piston valve" and says it needs to be charged different than one with a piston. He dumps more freon out and says that they might have to replace the coil with one that has a piston instead of a TXV if I want it work right.
I know dang near nothing about HVAC, but am learning quickly that nobody else around here does either.
My question is this...Is this coil compatable with this condensor?
If not, then I do not have a problem changing out the coil to match the condensor.
If it is, obviously these folks can not fix my problem and I need to find another company.
I know that nobody can solve my issues from behind a computer screen, but can anyone offer a suggestion as far as what might be the problem with this system?
I just want my AC to work properly.