I have the same type of problem with my A/C unit as a previous posting. I bought a brand new 13 Seer Trane unit for my 1500 sq. foot home about a year and a half ago. The system that I had before was an older 15 year, 10 seer York unit. The York cooled awesome even in 100 degree temps. It had freon leak problems all of the time, and then eventually it couldn't live on anymore. The new Trane unit was installed in March, and seemed to be cooling fine. As soon as June and the hotter months came, I would notice that the temperature would go up a few degrees than the temp. that I had it set at. For example: I had it set at 77 and then during the mid day it would go up to 78, 79, 80 and would stay at that temp, until the temps outside cooled down a little bit. I called the company that installed it, and they came out to check it. Ofcourse, that day was a little cooler, and the system appeared to be cooling properly. This would happen again and again throughout the entire summer, and the company would say nothing is wrong. I finally decided to give up, until this summer, when it happened again, but worse. I live in florida and it got to 85 degrees in my house!!! I decided to call another company since I am no longer under warranty for labor with the company who installed it. They came out and checked everything, the pressure, air handler, freon, leaks, compressor, thermostat, filter, and said that they couldn't find anything wrong either. They did notice that there were a couple of small leaks in the ducts, but told me that shouldn't make the temps that much warmer. The A/C did stay at the temp that I set it at too that morning, but right after he left, the temp went up 2 degrees higher. I called him back and told him to look again. He still couldn't find anything, but suggested it could be that the ducts are too small for the new system. I was desperate and said, lets do it. Today they just installed a 18" duct at the air handler and supply unit, and fixed the leaks in the ducts. Cost me $425, guess what? It still doesn't work right! It was at 80 degrees all night at my house. They are coming back out tomorrow, does anyone think it could be electrical?
Thanks!
Thanks!