MAINTENANCE TUNE-UP UNDER SERVICE AGREEMENT FOR 17 YR A/C UNIT. BAD COMPRESSOR. INSTALLED 4T GAS PK, 12Y. CHECK CONDENSER COIL, DRAINAGE, FREON, VOLTAGE, AND AMPERAGE ON MOTORS. THERMOSTAT, AIR FILTER, AIRFLOW, BLOWER COMPONENTS, AND ALL ELECTRICAL CONNECTIONS. CHECK MANIFOLD GAS PRESSURE AND FOR PROPER VENTING. CHECK BURNER OPERATION. EVERYTHING IS RUNNING GOOD.