Arrived onsite for heating maintenance 1 high efficiency gas fired furnace and humidifier. Basement Furnace System: Turn heat on and confirmed operation. Changed 501 filter and panel 45 provided by customer. Brushed and Wiped down furnance blower cabinet and gas burners. Burners fired and are in good working order. No visual impingement detected. Checked electrical. Cleaned and Measured 3.1micro amps on the flame sensor. Measure temperature rise at 48 degrees. System is operating as it should.
