Hi, I am new to this forum. Just started purchasing Dodge and Chrysler products a couple years ago. Seem to all have some of the same issues. I have a Nitro that currently blows heat from Defrost section and Vents but only cold air comes out floor no matter the setting and all the time. The door seems to be functioning properly and can cycle between vent and defrost fine but the floor seems to blow the same all the time and cold all the time. Ok until its -10 and my feet freeze.....any ideas?