Cleaned and serviced furnace. First visit on plan. Tested all mechanical components. Cleaned all sensors. New unit about 5yrs old. Tested gas valve and inlet/outlet pressures. Cleaned all pressure switch hoses. Replaced furnace filter that customer provided. Gave customer estimates for new humidifier that doesn’t work. Gave customer estimates for new water heater due to being out of warranty. System is clean, heating and operating properly at this time.