I evaluated why the system was not cooling. I discovered the system is extremely low on r22 refrigerant. I performed leak search and found evaporator coil is leaking in multiple different places. The system is also pasted its life expectancy and the refrigerant is out dated and no longer being manufactured. I recommended upgrading system at this time. We returned that Thursday and Install a new Goodman 4-Ton Variable Speed 20SEER Complete system. 10 Year Labor Limited Warranty, 10 Year Manufacture Limited Parts Warranty, 12 Years Limited Compressor Warranty, 10 Year Limited Coil Manufacture Warranty.