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 compressor/ condenser fan motor capacitor. 6. Checked compressor amp draw. 7. Checked condenser fan motor amp draw. 8. Inspected / replaced return filter. 9. Inspected return plenum for debris/ dirty. 10. Inspected evaporator coil. 11. Inspected blower motor/ blower wheel. 12. Checked blower amp draw. 13. Measured temperature differential from supply to return. 20 degrees measured. 14. Tested capacitor and contactor (outdoor electrical) 15. Rinsed condenser unit to promote heat exchange 16. Tested emergency heat and found no issues Homeowner stated they were seeing a lot of dust within the home and my findings reflect that; As I was seeing a lot of dust on the filter that had been changed in January and return plenum for the system being so new. Customer was unhappy this was not offered at install and is not in