1998 AC/Heater Control Head Unit

[350Vortec]

My blower speed controller works fine
My Hot to cold controller works fine
But the know that controls where the heat blows does nothing anymore.

Is it almost dead positive that i need a new controller like what you guys showed?

I can hear my actuator doors opening and closing when i play with the hot and cold settings so im assuming that its not the door actuators.

 

[frito-bandito]

These are way better than that electronic BS that the 88-94 trucks have, and cheaper too.