Performed AC cool check. Checked 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 verified the condensation pump is operational. I also treated the drain line. Surge protectors are also operational. The air filter is new and had been recently replaced by the customer. I cleaned the condenser coil. No major issues were found. The system was running at the completion of service.