Originally Posted by
Ronman
How often do you have to do this? It has worked for me too. Why do you say do not open the windows?
Leaving the windows closed with the heat on has a tendency to remove a lot of humidity (it is always good to remove excess humidity in a vehicle, right?). OR, It'll allow the systems sensors less time to fully settle down without any outside air temperature influence (which makes more sense being it is a dual zone system with a common ductwork return).
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