2017 Trane high efficiency furnace running in great condition. Cleaned Trane Clean Effects filters. Clean flame sensor and check ignitor ohms. Flush condensation trap. Humidifier pad in good condition, damper opened, run test during heating mode. Run test unit in heating mode. Delta t of 50F with supply temp of 123F, spec Delta t of 40-70F. 2" pvc flue in good condition and no sign of leaks. 0PPM CO detected during testing. Blower motor and inducer motor running within specs. Unit is operating properly, efficiently and ready for Winter