Performed a detailed heating system inspection for a homeowner in Warrington, PA 18976. The home has two Carrier gas furnaces—one in the basement and another in the attic—both showing signs of air leakage at the coil and plenum connections. We noted a dirty blower motor with oil residue, loose drain lines, and a broken humidistat. Explained our 21-point tune-up to ensure both systems run safely and efficiently before the cold weather sets in.