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Hello, I own a 08 G5 GT, when I turn the knob for airflow 1-4 it doesn't even blow air at any of them, what do I need to replace or get fixed?

Thanks
 

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Either the resistor, or, more likely, the fan itself. First off, check for a blown fuse!

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Hello, I own a 08 G5 GT, when I turn the knob for airflow 1-4 it doesn't even blow air at any of them, what do I need to replace or get fixed?

Thanks
Since it's not working in level 4, I would assume the resistor is good. (The resistor is a voltage divider and level 4 should bypass the resistors) so you're left with the motor, wiring or switch. Check the fuse, check for power at the plug. The voltage at the plug should change with the switch. If you have voltage at the plug to the blower, the blower is bad.

The switch technically isn't replaceable. The control panel is replaced as a unit. You can get a switch for a different car that is the same switch but I don't remember the year and model of the top of my head.

Hope this helps.
 
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