MAINT. TUNE-UP PER SERVICE AGREEMENT FOR 3 A/C UNITS, 10 YR, 11 YR, AND 4 YR, FOUND RUSTY COILS ON 2 BUT NO LEAKS. CHECK THERMOSTAT, DRAINAGE, FREON, AIRFLOW, AIR FILTER, ENERGY CONSUMPTION, AMPERAGE, VOLTAGE, AND ALL ELECTRICAL CONNECTIONS. EVERYTHING IS OPERATING GOOD.