Cleaned and serviced furnace. Tested flame sensor, pressure switch , inducer motor amperage, fan motor amperage and capacitor, and gas valve voltage. Replaced humidifier pad (35) that customer provided. Furnace filter was just changed by customer. Everything is working as it should at this moment. Customer renewed maintenance program and will have both visits for spring and this coming fall. Gave customer estimates for new furnace/humidifier due to rust build up and furnace from 2004.