I found disconnect pull-out switch missing!! I turned off the breaker at main panel, but still had voltage to one leg! Check voltage at circuit breaker in panel: no voltage, but still has voltage at one leg outside! I wired around missing pull out switch for testing. I found condenser fan motor bad! Shorted windings. Also, compressor run capacitor is bad. Open circuit. Also found system very low on Freon. Air-conditioner is 29 years old. Uses older type of Freon. Work suggested: recommend replacing air conditioner.