Upon my arrival I checked into the concerns with the back system not cooling properly. Performing my diagnostics I found the pressures and temp split were good. I checked the vents and found that a few of them were shut down to allow more airflow to the daughter’s room. I helped the customer with balancing the vents to allow airflow to all areas and informed her they may have to make adjustments as they go. Currently all areas are cooling well. There are no blinds in the daughter’s room allowing sunlight to enter as well. I advised on blinds and blackout curtains.