John: It’s not just your RV built on a Friday. If anything, it’s a Keystone wide problem with poor A/C ducting and QC, and I’m sure the problems are not limited to just Keystone. That’s why there is a 10 page thread on this forum titled:
Amazing A/C Airflow Improvements I had to replace the vents with some that offered better airflow and tape around the duct vent openings to make sure air wasn’t escaping into the ceiling. The test will be towards the end of July going into August to see if I was successful.