HAD A SERVICE CALL, NO AC. CHECK THERMOSTAT, CHECK FREON LEVELS. INSTALL 2T HP AND AH. MADE SURE SYSTEMS WERE INSTALLED PROPERLY. CHECK ALL ELECTRICAL CONNECTIONS, CHECK VOLTAGE AND AMPERAGE ON MOTORS, CHECK AIR FILTER. CHECK DRAINAGE, CHECK AIR FLOW. MADE SURE WORK AREA WAS CLEAN WHEN FINISHED. EVERYTHING IS RUNNING GREAT.