Started with the court room located in the basement. Turn heat on and confirmed operation. Changed 16x25x1 filter 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. Cleared condensate line. Cleaned and Measured 2.0 micro amps on the flame sensor. Measure temperature rise at 30 degrees. System is operating as it should.
