Heat Tune Up Upon Arrival Increased the temperature to ensure the system was function Check the temperature on the supply/return Cleaned/Removed flame sensor Inspected gas line for leaks Changed air filter Inspected gas valve Amperage is low on capacitor Gas furnace is very old blower motor is extremely dirty Amperage is low on the capacitor Return box is covered with dust and dirt Visible no insulation in attic (beams are exposed) Customer has mention the far room upstairs gets very cool in the winter very hot during the summer