Furnace tune-up and safety inspection. Tested all mechanical components. Cleaned all sensors. Cleaned pressure switch hoses and inlet. Noticed HSI was very corroded. Replaced part. Tested gas valve voltage and inlet/outlet pressures. Tested the blower motor amperage and capacitor. Replaced the furnace filter that the customer provided. The system is clean, heating, and operating properly at this moment. Customer renewed VIP maintenance plan. One visit is being used today. She will have spring/ac visit of 2026 prepaid/remaining. Performed free inspections.