Furnace Maintenance: Flushed the condensate lines to ensure proper drainage. Switched the filter with clients supplied filter (16x25x5). Inspected pressure switch tubing for functionality. Cleaned and polished the flame sensor to optimize performance. Noticed a hairline crack in condensate green strainer. Reapplied sealing compound. Conducted diagnostic testing, confirming the system is operating efficiently. Client will e-transfer Joyce. Happy New Year,