Furnace Maintenance: Replaced the media filter with x6670 (16x25x5) for optimal air flow. Added teflon tape to the collector box plug to avoid further water damage. Flushed the condensate 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. Jennifer!