Performed ac diagnostic on 26 yr split system attic. Found system not turning on the fan. Ac condenser comes on but no fan, tested fan by itself and with heat, nothing. Checked blower capacitor 12.5@10 out of range but not by much. Found that control board isn’t producing power to turn on blower. Took control board off of unit and found what looks to be a burnt and broken soldier point. See pictures. Replacement of primary control board. Disconnected power to unit, removed old board installed new board per manufactures specifications. And then tested system. System cooling when I plugged system in to test. System working well for now. Keep an eye on blower capacitor and blower has slight vibration. House cooled from 83-81 degrees.