Today I arrived on site and performed a winter tune-up on the system, which is currently working properly. **Indoor Unit (Air Handler in Attic Closet):** * Verified the indoor unit is in good condition. * Confirmed the indoor coil is clean and in good condition. * Observed a pleated 1" filter (20x20x1). Customer will replace the filter. * Inspected the blower wheel, secondary drain pan, primary drain pan, electrical wires, and ductwork; all are in good condition and working properly. **Outdoor Unit (Heat Pump in Back Yard):** * Verified the outdoor unit is in good condition. * Confirmed the outdoor coil is in good condition. * Tested and inspected the blower motor and compressor; both are working properly within manufacturer's specifications. **System Checks:** * Return air temperature: 65.0°F. * Supply air temperature: 90.0°F. * Cleared the condensate drain line. * Cleaned out the primary and secondary pans. * Tested the safety switch. * Confirm