Heat blows hot on passengers side only

[jhw]

I have a 2021 ram bighorn 2500 it has the 8.4 unconnect with manual climate control knobs. There's no climate control sittings on the unconnect. It's 3 Manuel knobs under the screen with no buttons in between. Heat blows hot outa passenger side but not out the drivers side and feel like no defrost. It does it in every mode. Floor, mix, dash vents, defrost/floor. Fan speed seems to work. I don't see any modules like mine anywhere on line. It's no climate control through the unconnect. And only 3 manual knobs under the screen. Most manual systems I see online have buttons in between the knobs. Any suggestions

 

[vincentw56]

I have a 2021 ram bighorn 2500 it has the 8.4 unconnect with manual climate control knobs. There's no climate control sittings on the unconnect. It's 3 Manuel knobs under the screen with no buttons in between. Heat blows hot outa passenger side but not out the drivers side and feel like no defrost. It does it in every mode. Floor, mix, dash vents, defrost/floor. Fan speed seems to work. I don't see any modules like mine anywhere on line. It's no climate control through the unconnect. And only 3 manual knobs under the screen. Most manual systems I see online have buttons in between the knobs. Any suggestions

Could be a blend for issue. But you might have better luck in the Homepage - HD Rams forum. This is the 5th Gen 1500 Rams site.