Complete 1 system a/c repair and preventative maintenance check. Found system overcharged. Found system with very weak capacitor leaking oil. Found burnt wiring. Found burnt main electrical switch. Found compressor running above maximum rated amperage. Found bad corrosion on condenser coil. Due to age and condition of the system, recommend upgrading system to a more reliable and more efficient system. Balanced refrigerant pressures. Replaced main electrical switch. Replaced capacitor. Current supply temp is 66 degrees. Amp draw on compressor before replacing parts was 22 amps. After replacing them it was 17. Max rated amperage is 16.1. The system is old and worn and may not last very long. The system is cooling at this time.