Checked the A/C unit. It was not cooling well and found the unit only getting a 12-15 degree split. Checked freon levels, good. Replaced warranty TXV and changed fan speed to use with a 2 and a half ton condenser and got a 17-18 degree split. Went back with Brent, and the unit was still not cooling properly so we replaced the 2 and a half ton with a 3 ton condenser.