Today I arrived on site and performed a winter time maintenance on your HVAC equipment. Indoor Unit (Furnace in Closet): Filter: Checked the 20x25x4 pleated filter. Indoor Coil: Noted the condition as fair. Outdoor Unit (Straight Cool on Side of House): Outdoor Coil: Noted the condition as fair. Electrical Components (Tested and Working): Verified proper operation of: Inducer Draft Motor, Compressor, Condenser Fan Motor, Blower Run Capacitor, Compressor Run Capacitor, Fan Run Capacitor, Contactor, Electrical Wiring, Furnace Control Board, Blower Motor. System Components (Inspected and Working): Confirmed good condition of: Blower Wheel, Burners, Exhaust Flue, Heat Exchanger, Primary Drain Pan, Electrical Wires Secured, Ductwork. System Testing: Carbon Monoxide: Tested for Carbon Monoxide, reading 0.00 PPM. Temperature: Recorded Return Air Temperature at 73.0 Degrees Fahrenheit and Supply Air Temperature at 100.0 Degrees Fahrenheit. Condensate Drain System: Cleared the drain line.