CLEAN AND CHECK 5 YR OLD A/C UNIT, CLEAN AND CHECK CONDENSER COIL. LUBRICATE ALL NECESSARY MOVING PARTS, AND ADJUST BLOWER COMPONENTS. CHECK THERMOSTAT, AIR FILTER, AIRFLOW, DRAINAGE, FREON LEVELS, ENERGY CONSUMPTION, VOLTAGE AND AMPERAGE ON MOTORS, AND ALL ELECTRICAL CONNECTIONS. EVERYTHING IS RUNNING GREAT, NSA