I inspected furnace system to include: R-410a TXV -All electrical wiring, motors, and components -All safeties ok -drain is clear -evap coils are clean -condenser coils are clean Iddb 65 Oddb 13 Top floor system had a dirty blower and a burned wire on line wires. I rewired furnace and pulled and cleaned blower wheel. I also replaced the humidifier pad on the downstairs unit. Both systems are in good working order.