On site for heating maintenance on 2022 Trane furnace. Homeowner stated all is well with normal system operation. Proceeded with heating maintenance as scheduled. 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. 15. Rinsed condenser unit to promote heat exchange Found decent amount of dog hair in return. I would recommend cleaning out the return in order to prevent dust and dander from making it into the unit and ultimately shortening the lifespan of
