Climate control selector not working?

Tiny
TWEBB101
  • MEMBER
  • 2008 HONDA ACCORD
  • 2.4L
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 204,000 MILES
Hello! Just started recently, but the climate control buttons aren't working anymore. The lights will come on, but the vents don't change. When I press a button to change from floor to defrost to straight on, etc, nothing happens, no sounds, nothing. Is that a vacuum leak? Bad door motor? Something else?
Friday, April 18th, 2025 AT 8:33 PM

5 Replies

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,272 POSTS
This can be the HVAC system controller or most likely the mode actuator. Here is the location so you can swap it out. This is what changes the vents. Check out the images (below). Let us know how it goes.
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Sunday, April 20th, 2025 AT 11:22 AM
Tiny
TWEBB101
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  • 187 POSTS
Thanks Ken. How involved is the process of getting to the point of replacing the actuator?
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Tuesday, April 29th, 2025 AT 6:13 AM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,272 POSTS
Good question, it looks like you will need to remove the blower unit housing to get to the mode actuator, here is how the job is done. Check out the images (below). Let us know how it goes.
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Tuesday, April 29th, 2025 AT 10:33 AM
Tiny
TWEBB101
  • MEMBER
  • 187 POSTS
Just following up; put a new mode actuator in and we're back up and running! Thanks for the assist.
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Tuesday, November 25th, 2025 AT 4:42 PM
Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 54,272 POSTS
Nice work! Glad you could get it fixed, thanks for letting us know. Please use 2CarPros anytime we are here to help.
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Wednesday, November 26th, 2025 AT 9:59 AM

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