Quote Originally Posted by jerryd_2008 View Post
Beenthere, this is hurting my brain, but I think that I may have an alternative solution using 2 "sensor" locations. It also stays within the 1, 4 , 9, etc. indoor sensors that Honeywell requires.

One of the options on configuring the Honeywell YTH9421C1002/U tsat using setting 340 is to use one real C7189U1005 indoor sensor and the original tsat.

Beenthere, I appreciate your patience as this HVAC idiot works through a solution to a bad uneven house temperature problem.
If you continue to try to work with "this HVAC idiot",
you get what The Owner deserves.

if the root cause - windows - is not addressed,
you get what you get
and don't have a fit.