Today I arrived on site and performed a summer tune-up on the system. **Indoor Unit (Air Handler in Attic):** * The indoor unit is in fair condition and services the whole home. * Washed the washable 16x20 filter. * The indoor coil is clean and in good condition. **Outdoor Unit (Heat Pump in Back Yard):** * The outdoor coil is clean and in good condition. * Tested and inspected the blower motor, condenser fan motor, compressor, compressor run capacitor, fan run capacitor, contactor, and electrical wiring; all are working properly within manufacturer's specifications. * Inspected the blower wheel, secured electrical wires, primary drain pan, and secondary drain pan; all are in good condition and working properly. **System Checks:** * Measured a return air temperature of 75.0°F and a supply air temperature of 57.0°F. * Cleared the drain line, cleaned out the primary pan, and tested the safety switch. I found the safety full upon arrival, but the unit was still runni