Heater blowing cold on passenger side

2014 KIA OPTIMA
120,000 MILES • AUTOMATIC
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MARIEBOO
  • MEMBER
  • 3 POSTS
Car listed above is an lx model. I have heat on drivers side but cold air on passenger side.
Jan 18, 2021 at 8:14 AM
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STRAILER
  • ✓ASE Certified Mechanic
  • 54,832 POSTS
  • ASE Certified Mechanic
This happens when the passenger side blend door actuator goes out. here are instructions in the diagrams below on how to change it out. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

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Professional Diagram for 2CarPros Members
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Jan 19, 2021 at 6:07 PM
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Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.