During today’s visit, performed maintenance and inspection on one attic furnace unit. Inspected flue pipe and ductwork for leaks. Inspected overall cleanliness of the blower and burner compartments. The customers filter did not need to be changed at this time. Inspected flame sensor, igniter, pressure switch, and burners. performed ignition sequence on the furnace and inspected flames. Inspected blower and inducer amp draws. Inspected temperature heat rise, which is in the ideal range. This system is performing normally at this time.