Defrost/floor vents not blowing air

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JP Strunc

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My 2015 sho’s defrost and floor vents just randomly stopped working today. My dash vents and rear defrost work perfectly fine, but as soon as I turn on the defrost, it only blows from the dash. Same problem with the floor vents. Any help is greatly appreciated!!


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luigisho

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I'm not sure how many actuators are in this car but most likely one is broken moving the air flow from one area to another. I know there is a mode actuator but I don't have all the specs to see how everything works together. If it is like most modern vehicles it is tucked into a **** to access space in the dash. See if there are files from a repair manual that have all the actuators for HVAC listed so you can get an idea of location and function.
 

JP Strunc

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Sounds like a pain in the ass. I’ll look into it, thanks


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CraxyMitch

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It's the driver side actuator, it's waaaaay up above the accelerator. You'll hate replacing it. But it's small and cheap to buy a replacement.
 
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I thought the one above the pedal was for the drivers side climate? isnt the one for vent control behind the radio? I know of 3 actuators, drivers side climate accessible above pedal, passenger climate accessible behind glove box, and vent control deep behind the radio. I could be wrong, I did a little research when I lost AC this past summer.
 

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