Today, I arrived on site to perform summer maintenance on the HVAC equipment. Overall Equipment Condition: * Rated as fair. Indoor Unit Details: * Located in the attic as an air handler. * Serves the downstairs, south side area. * Filtration system: replaced pleated 1" filters today using customer-supplied spares. * Filter size: 20x25x1. * Indoor coil condition: good and clean. Outdoor Unit Details: * Located in the front yard as a heat pump. * Outdoor coil condition: good and clean. Electrical Components: * Tested and found to be working properly: * Blower motor * Condenser fan motor * Compressor * Compressor run capacitor * Fan run capacitor * Contactor * Electrical wiring * No components were found to be malfunctioning. System Inspections: * Components in good condition: * Blower wheel * Primary drain pan * Electrical wires secured * No components were in poor condition. Testing: * Return air temperature measured at 74.0°F. * Supply air temperature measured at 47.1°F. * Condensate d