Arrived onsite for heating maintenance 1 high efficiency gas fired furnace 1 . Furnace unit: Ask customer to turn heat on and confirmed operation. Changed filter provided by homeowner. Brushed and Wiped down furnace blower cabinet and gas burners. Burners fired and are in good working order. No visual impingement detected. Checked electrical. Igniter in good order. Cleaned the flame sensor. Confirmed pressure switches and hoses are in good order. Cleared condensate line is clear. Measured 30 degree temperature rise. System is operating as it should.
