Furnace Maintenance: Replaced media filter (16x25x1 [used last filter, will need to pick up more]. Cleaned and Confirmed air cleaner is working. Blower wheel has a bit of build up, recommend having it cleaned in thw near future for airflow optimization. Humidifier is not working. Flushed the condensate P-trap and drain lines to maintain clear, efficient flow. Checked pressure switch tubing to ensure reliable performance. Cleaned and polished the flame sensor for optimal ignition. Ran full diagnostics to confirm the system is running smoothly and efficiently.