Performed heater tune-up. Checked electrical, mechanical, safety, and performance of the system. I cleared the drain line and flow tested the drain with two gallons of water. I also treated the drain line. The Reme Halo air purifier is operational. I treated the condenser cabinet with JS insecticide to help protect the condenser contactor. The condenser coil was cleaned. No major issues were found. The system was set to the customer’s desired temperature, and the system is running at the completion of service.