I came out for a silver ac maintenance. I washed the AC coil. I checked the filters, blower, evap coil, drain, capacitors, contactor and all wiring. I cycled the ac and checked all temps amps and charge. The return ducts are really undersized. There is 3-12†returns which equals 900cfm. The system needs 2000cfm. I recommended increasing and adding another return. The system is working at this time.