Today I arrived on site and performed a winter time tune up on your system. Here's a summary of the work completed: **Indoor Unit (Furnace in Attic):** * Replaced the accordion filter (APR 401). * Customer requested additional filters for a charge. * Confirmed the indoor coil is in good condition. * Inspected and confirmed proper function of: * Blower wheel * Burners * Exhaust flue * Heat exchanger * Primary drain pan * Electrical wires * Secondary drain pan * Ductwork **Outdoor Unit (Straight Cool on Side of House):** * Confirmed the outdoor coil is in good condition. **System-Wide Checks:** * Tested for carbon monoxide; reading was 0.00 PPM. * Measured return air temperature at 74.0°F and supply air temperature at 110.0°F. * Cleared the condensate drain line. * Cleaned out the primary and secondary drain pans. * Tested the safety switch. * Confirmed the drain line is strapped. **Additional Actions:** *