Preventative maintenence inspection on 2024 Daikin modulating high efficiency gas furnace. Aprilaire 210 airmfilter in decent condition, check again in 1-2 months. Clean flame sensor and check ignitor. Visual inspection of burners. Flush condensation trap and drain lines. Run test unit in heating mode. Gas furnace is operating properly, and within manufacturers specifications. Tested operation of humidifier during heating test, and opened damper. Furnace is operating properly, efficiently and ready for Winter.