Air vents not switching

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Zefoxe
Posts: 47
Joined: Fri Aug 31, 2007 10:07 am
Car: 89 240sx Coupe
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Hey all. I'm a little stumped. The buttons to switch the vents to the main to the floor to the defogger etc. doesn't work. Its stuck on the main vent. The a/c and recycle button do not work either but the climate and fan switches still work fine. My brother suggested getting a new unit to replace it but its the same case as the other one. Could it be the wiring or am I missing something. Any help would be greatly appreciated!


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coolbone28
Posts: 297
Joined: Tue Dec 21, 2004 6:00 pm

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The vent changes are controlled by vaccuum. Try finding the lines and go over them.

hayai_240
Posts: 37
Joined: Sat Jul 08, 2006 6:59 pm
Car: 1989 240sx Coupe

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Haha thats crazy. I had this EXACT same issue about a month ago. I thought my climate control unit was broken and started looking for a replacement. However, I forgot to check my fuses. Turned out that my A/C fuse blew which caused my vent controls to not work. But everything else still worked. I would have never thought that the A/C fuse was connected to the vent controls.

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Zefoxe
Posts: 47
Joined: Fri Aug 31, 2007 10:07 am
Car: 89 240sx Coupe
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ill check the lines.

yea forgot to mention, looked over every fuse on the car pretty much, and they're all functioning fine. might try to replace it anyways just incase

Thanks for the replies!


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