In Sun Lakes, AZ: UPON ARRIVAL CYCLED UNIT INTO COOLING MODE. CLEANED AND WASHED CLEAN EFFECT AIR FILTRATION . TOOK TEMPERATURE READINGS FROM SUPPLY AND RETURN. AT UNIT CLEANED AND TIGHTENED ELECTRICAL CONNECTIONS. TOOK VOLTS AND AMP DRAWS FROM COMPONENTS. CHECKED FREON LEVELS WITH SUPER HEAT AND SUBCOOL. UPON DEPARTURE UNIT WORKING PROPERLY AND WITHIN MANUFACTURER SPECIFICATIONS.