Cold air from dash
Thread Starter
3rd Gear
Joined: Jan 2018
Posts: 3
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Cold air from dash
Just got back into a 2016 C7, so trying to remember how to use the info in the Corvette forum again lol. Almost certain Ive seen this problem posted and asked about before. My AC is working great, except the only ventilation is coming from the floor vents, and the small defogger vents next to each window. I have no ventilation coming from the dash vents in any mode, either heating or cooling. Im remembering a fix (I think, Im old) that explained a way to reset or calibrate the diverter in the dash. Can anyone refresh my memory, point me to the right forum, or has had any experience with this problem? TIA
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Sounds like the blend doors on your HVAC system may be working improperly. There have been a number of threads on the forum that discusses this. A search should bring up some hits for you to review.
Pro
Joined: Sep 2007
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From: Queen Creek AZ
Just got back into a 2016 C7, so trying to remember how to use the info in the Corvette forum again lol. Almost certain Ive seen this problem posted and asked about before. My AC is working great, except the only ventilation is coming from the floor vents, and the small defogger vents next to each window. I have no ventilation coming from the dash vents in any mode, either heating or cooling. Im remembering a fix (I think, Im old) that explained a way to reset or calibrate the diverter in the dash. Can anyone refresh my memory, point me to the right forum, or has had any experience with this problem? TIA
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Try un plugging your battery for a few minutes. This may re set it. If that doesn't work you may be able to have the dealer reset the door with a scan tool. If that doesn't work you may need to dis assemble the dash to replace parts. I had this happen to me in February. New blend door and actuator, and blower motor. $4000. Thankfully covered by warranty.
