Performed maintenance on Lennox 2020 furnace 1. Visually inspected condenser coil for debris/ dirty. 2. Inspected condenser fan motor. 3. Inspected condenser fan blades. 4. Inspected/ cleaned wiring connections. 5. Tested for gas leaks 6. Tested functionality and cleaned flame sensor 7. Tested functionality and cleaned pressure switches and ports 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. 11. Tested functionality and visually inspected surface igniter 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. Found capacitor testing outside of manufacturer specification. 31 of 35 +/-5%. Also noticed very good amount pitting on the contactor as well as 18 ohms of resistance which is higher than I would like to see. Recommend replacment of capacitor to avoid system failure at a minimum and hard start kit bundle to ensure longest life span of electrical components
