Last summer my unit was 3lbs low on freon. They told me if it was low again next year that I have a fast leak and that it needs to be repaired right away. Had them check this summer even though it was working perfectly and they said it was 2lbs low and that it was my A Coil in my LENOX C23-41w-1, top mount unit (10 yrs old). They charged me $ to replace it. Now in the peak of the afternoon until about 8 in the evening it is freaking hot in my house. They said that it is normal this time of year with a heat index of 105*, reg temp of 90-95*. Thermostat is set @ 69* but it is 80-85* in my house! No one else I know is experiencing this and I did not have this problem before. They have come back twice and told me there is nothing wrong. The a coil they put in was different than the one they took out. They said that was the only one they could get ahold of. The first time I called to tell them it wasn't cooling they had me go to the basement and feel some pipes. They said the small one should be warm and the bigger one should be cold and swety. They were both room temp and so was the air blowing out of the vents. They have come out twice since the repair and magicly after they come by it works again. How does the heat index effect the temp in an air-conditioned house? What should I do?