For this job we performed a super tune-up. All mechanical and refrigerant portions of the unit were working within normal limits. There was dust buildup in the plenums and also mild dust on the blower. I spoke about benefits of having duct cleanings done periodically. Homeowners water heater was 13 years old, I reccomended a flush/clean by a plumber if it is not being done regularly. Homeowner declined scheduling any work but requested the report to be emailed. No further suggestions were made, thank you for choosing comfort experts, have a great day!