Arrived on site customer stated she was unsure if there was air coming out of the vents. Checked and verified air was coming out of the vents. Proceeded to the outdoor unit, and found a failed capacitor. Checked wire connection and searched for other possible issues; all was well. Spoke with homeowner and she approved the replacement. Replaced capacitor and started up unit without issue. Allowed unit to run for 30 mins and measured 55 degree temps at attic unit.