Performed AC cool check. Checked the electrical, mechanical, safety, and performance of the system. I cleared the condensation drain line and flow tested the drain with two gallons of water. I also treated the drain line. At the air handler, I found that the drain line connections used for a vertical orientation were not capped and had been leaking into the secondary drain pan. I capped the connections. The capacitor for the condenser unit was below value. Condenser coil was cleaned. Options for repair were presented to the homeowners. They chose to have the capacitor for the condenser unit replaced. I replaced the capacitor and function tested the system. The system was running at the completion of service.