Today I arrived on site and performed a winter time maintenance on your HVAC equipment. **Indoor Unit (Furnace in Attic):** * Replaced the SG600 filter. * Confirmed the indoor coil is clean and in fair condition. **Outdoor Unit (Straight Cool on Side of House):** * Verified the outdoor coil is clean and in fair condition. **Electrical Components:** * Tested and confirmed proper operation of the inducer draft motor, condenser fan motor, compressor, blower run capacitor, compressor run capacitor, fan run capacitor, compressor start capacitor, contactor, furnace control board, and electrical wiring. **System Components:** * Inspected and verified the good condition and proper operation of the blower wheel, burners, exhaust flue, heat exchanger, primary drain pan, secondary drain pan, secured electrical wires, and ductwork. **System Testing:** * Carbon monoxide levels measured at 0.00 PPM. * Return air temperature: 67.0 Degrees Fahrenheit. * Supply air temperature