Furnace Maintenance: Replaced the homeowner media filter (16x25x1) optimal airflow (sidenote: one fresh filter left). Blower wheel has build up of dirt and dust, recommend cleaning in spring during A.C Maintenance. 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.