Performed cooling maintenance on an 11yr old trane 16seer ac Filter is good Blower clean Drain clear Outdoor coil slightly dirty Capacitor failed, it is rated 40/7.5 it measured 0/7.5 Replaced capacitor Refrigerant charge specification is 8⁰ of subcooling, actual reading was 2⁰ Added 1lb of refrigerant and a dye/sealant Washed outdoor unit System is operating within factory specs at this time.