Agree About Not Closing Vents
https://tysonhspl960.fairmontdigest.com/posts/outdoor-ac-fan-not-spinning-in-north-fort-worth-is-a-repair-job-for-comfort-experts
Agree About Not Closing Vents Agree with the point about not closing too many vents. I used to shut them in the guest rooms to cut energy use, and the system started whistling and running longer. Opened them back up and things calmed down