Arrived onsite for heating maintenance on gas fired high efficacy furnace with polarized air cleaner. Basement Furnace System: Turn heat on and confirmed operation. Changed filter media provided by customer. Brushed and Wiped down furnace blower cabinet and gas burners. Burners fired and are in good working order. No visual impingement detected. Checked electrical. Cleaned the flame sensor. Measure temperature rise at 46 degrees. Performed Combustion Test. System is operating as it should.
