Cleaned and serviced furnace. Tested all mechanical components. Cleaned all sensors. Cleaned condensation trap. Cleaned all pressure switch hoses and inlets. Tested gas valve voltage and inlet/outlet pressures in both 1st stage and 2stage heating. System is clean, heating, and operating properly at this time. Performed free inspections. Customer renewed Maintenance plan. One visit is being used today. They will have spring/ac visit remaining for 2026 season. Customer said cleaning ac in spring and new filter is fine. Bring 510 AprilAir filter!