Center Vents Won't Blow

Discussion in 'Prius c Care, Maintenance and Troubleshooting' started by GregPriusC, Jul 30, 2021.

  1. GregPriusC

    GregPriusC New Member

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    2013 Prius c
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    Two
    Hey all, found some threads with a similar problem but didn't see anything resolved.

    I've got a 2013 Toyota Prius C and the heat/air conditioning works, but it won't blow out of the center vents. Regardless of setting I get a weak flow to the windshield and then depending on setting, get a strong/normal air flow to the floor vents or the side vents.

    I replace the cabin air filter often. The blower motor seems to work fine. The HVAC Air Inlet Door Actuator connected to the blower/fan seems to be working fine. I've watched it cycle through different settings when I push the button to change air flows but never provides air to the center vents. It will close/open the damper as required. I manually manipulated it as well and works the same as it does when electronically controlled.

    The regular Prius seems to have some mechanical linkage related to air flow near the driver's right side under the panels but the Prius C doesn't seem to have that. I've tried rotating through the various settings of temp and airflow but no luck.

    I do see on the parts breakdown that there may be additional HVAC Air Inlet Door Actuator(s) but I'm not sure how to access them. I'm unable to attach a link but any of the Toyota Parts Centers have it available.

    Anyone have this issue and resolve it before?
     
  2. GregPriusC

    GregPriusC New Member

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    2013 Prius c
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    Two
    Not sure if this will help anyone but I got back in there and realized there are two HVAC Air Inlet Door Actuators. Well, really three, but two are connected on the left side and there's one on the right side. It turned out to be an easy fix after all. I was initially working on the left hand side actuators and it seems the center vents are controlled by the actuator on the right hand side. If anyone has this problem take out you glovebox and look to the right of where you change your cabin air filter. Towards the back you'll see the other actuator. It was too far back for me to reach with my fingers but pressed a screwdriver against it and got movement. It then worked when using the electronic controls.
     
  3. sam spade 2

    sam spade 2 Senior Member

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    In some/most designs, your problem can also be caused by a "hose" coming loose and one end falling off.
    That may not apply to any specific model though.

    I hope you will come back and let us know if your "fix" keeps working or not.
     
  4. ChapmanF

    ChapmanF Senior Member

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    There are three actuators, with different names: for the inlet door, the outlet door, and the air mix.

    The inlet door controls whether fresh air or recirculated air is let in to the system.

    The outlet door controls where the air is let out (floor, center vents, defrost).

    The mix door controls how much heat is added.

    Naturally, if your issue is something to do with where the air gets let out, there is one of those actuators that will be a lot more interesting than the other two.
     
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