Performed diagnostic fair oak, 12 yr split York, found inside unit turning on and outside compressor turning on but outside fan not running. Tested dual capacitor, found bad. Replace dual capacitor since it’s dead, and tested system. System running ok at this time With yearly maintenance plan 1 AC tune up, 1 furnace tune up, and a plumbing inspection Switching to a permanent washable filter from the disposable ones. Save you money over the life of the system. Especially when changing filters more frequently.