*Cleaned and serviced furnace. **Customer renewed maintenance plan. One visit is being used today. He will have spring/ac visit of 2026 prepaid/remaining on current plan. ***Tested all mechanical components. Cleaned all sensors. Cleaned condensation trap and all hoses out. Cleaned pressure switch hoses. Tested gas valve voltage and inlet/outlet pressures. Tested inducer motor amperage and blower motor amperage. Found HSI & FS were very corroded and customer agreed to replace both parts. Replaced furnace filter and humidifier pad filter that customer provided. **** System is clean, heating, and operating properly at this time. Performed free inspections.