Arrived on site for heating maintenance on 2022 carrier furnace. Homeowner stated all was well with regards to normal system operation and they had turned on the heat this year. Proceeded with normal 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. I did notice the inducer motor making an abnormal amount of noise on start up, however, running amps were well within range. This could be indicative of the bearings wea
