Complete 2 system a/c repair and preventative maintenance check. Changed filters. Cleared drain lines. Dusted out electrical cabinets. Tested mechanical and electrical components. Found the main level system with damaged electrical disconnect box at the air handler, plastic is melted and the plug will not come undone. Recommend repair. Found weak dual capacitor in main level heat pump, recommend repair. Replaced damaged disconnect box, installed surge protection on all hvac equipment, and replaced the main level capacitor. Systems are cooling at this time.