Have Lexus RX300 with AC Heat door stuck problem. AC and Heat works but doors do not change. How can I fix this?

30

Asked by Feb 19, 2013 at 05:56 PM about the 2002 Lexus RX 300 Base

Question type: Maintenance & Repair

My Lexus RX300 AC and Heat doors do not change the airflow like maybe a door is stuck. How can I fix
that and how much might it cost to get the air doors working?

3 Answers

3,365

Kind of sounds like the actuator motors or servo motors that change the blend doors or the mode doors(where you want the air to blow) might not work anymore.. Do they make a clicking noise as if they may have stripped their plastic teeth or are in-op entirely? It could be fairly expensive, the servo motors aren't terribly expensive but dis-assembly of the lower passenger side of the dash and glove box area is usually required.

4 of 4 people found this helpful.
Best Answer
30

Changed the main servo. Overall cost including labor was $354.

2 of 2 people found this helpful.
95

If you can see the AIR MIX servo to the left of the glove box and just behind the head unit, you can replace yourself. You will need to remove the glove box and use a stubby philips screw driver. Before you do,get under and listen for the servo. Its the servo that is grinding and clicking. Used servo can be found on ebay for $50, new ones are about $175.

3 of 3 people found this helpful.

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