Today I arrived on site and performed a winter time maintenance on your HVAC equipment. **Indoor Unit (Air Handler in Attic):** * Replaced the pleated 1" air filter (18x20x1). Customer provided spare filters. * Observed the indoor coil to be in fair condition. **Outdoor Unit (Heat Pump on Side of House):** * Cleaned the outdoor coil, which was in fair condition. **Electrical Components:** * Tested and inspected the blower motor, compressor, blower run capacitor, compressor run capacitor, fan run capacitor, contactor, and electrical wiring; all are working properly within manufacturer's specifications. **System Components:** * Inspected the blower wheel, secondary drain pan, primary drain pan, and electrical wires; all are in good condition and working properly. **Condensate Drain System:** * Cleared the drain line. * Tested the safety switch. * Cleaned out the primary pan. **Measurements:** * Return air temperature: 70.0°F. * Supply air temperature: 48.0