Upon arrival, I spoke with Dee Dee, who mentioned that the second-floor room is not cooling properly. She also requested a brief report on the system’s condition. During troubleshooting, I discovered a hole in the return plenum at the bottom joint, which was allowing attic air to be pulled into the system. Additionally, I found multiple sections of the supply plenum where the seams were coming apart, causing air to leak into the attic space. I received approval to repair the identified issues with both the return and supply plenums. After completing the repairs, I observed that the airflow to the top floor had significantly improved. I also replaced the air filter on the first floor. However, I did not replace the filter for the second floor, as the correct size was not available at the time. Dee Dee declined an estimate for the Comf1 upgrade for her system. I also noted that one of the half windows is partially uncovered and recommended that she install blinds to help improve over