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A/C not working wiggle the fan speed knob in order for it to turn on?

Tiny
LANDTX22
  • MEMBER
  • 2016 KIA SEDONA
  • 157,000 MILES
The vehicle listed above has a V6.
When I first start my car the A/C does not work. I have to wiggle the A/C Knob to a specific number on the knob which is number 4 and hold it there for a couple of minutes in order for it to turn on. If I release the knob the A/C will turn off. If I leave the A/C knob on number 4 and leave it alone, the AC will turn on after about 5 minutes and will stay on until I turn off the car. Any suggestions? Thanks.
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Tuesday, October 4th, 2022 AT 8:18 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,513 POSTS
This happens when the control unit needs to be replaced. Here are the instructions to do so in the images below. Let us know what happens and please upload pictures or videos of the problem.
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Tuesday, October 4th, 2022 AT 11:09 AM

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