Quote Originally Posted by brunstar View Post
what temp was the return air sensor sensing?
It will not just read from the return air it will work on the return air and the last 2 degrees it will work on the wall controller.
On heating you will have a problem with the cycling as the hot air will stratify in the duct work and not be as responsive on heating so change the sensing to 10-2-01 for wall controller.

Air is lazy also so it will take the easiest route.
if you have rooms near the return air this will be the easiest route so i would suggest to the beds where you may have too much air flow close the door but leave a shoe in the door or if it is open plan in your living and you have 2 doors shut the one closest to the return air and make the air flow go around the long way to the return air.
Can you please explain how to switch between return air sensing and controller sensing using field codes?