the three buttons below the knobs will not work and the knob to adjust the vents from floor to dash etc will not work. The fan adjustment knob works great and the heater works as well. i replaced the control head and checked all the fusses. I have no idea what is causing the problem let alone how to fix it. Any educated answers would be greatly appreciated.I replaced my a/c control head on my 05 saturn vue and still have the same problem. how can i fix it?
The air diverter/blend door is usually actuated by vacuum lines one of them may be disconnected or broken.Or the door itself is stuck.I replaced my a/c control head on my 05 saturn vue and still have the same problem. how can i fix it?
check the blend doors for proper operation
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