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Tech Talk

Car Air Recirculation Not Working? Look For These Problems

You’ve probably seen the recirculation button on your car’s dashboard before: it’s the one that has a little circular or C-shaped arrow in an outline of your vehicle. But do you actually know what it is? More importantly, do you know why it’s important to get it fixed ASAP if it’s broken? We'll explain why the recirculation system may break as well.

What Is The Recirculation Button?

This little button is simple. Instead of telling your AC to take air from the outside, cool it, and circulate it through your vehicle, the recirculate button forces it to take air that’s already inside the car. Since this air has already been cooled by your AC unit, it puts less pressure on your air conditioning system and allows your car to cool down more quickly and efficiently.

Why Get It Fixed?

It might seem minor if your recirculate button is no longer working, but in reality, it’s actually a pretty big deal. For one, if your recirculate button is failing, your AC will have to work much harder to keep your car cool, especially if it’s the heat of summer. This added work for your AC system can cause it to wear down more quickly, meaning you’ll need repairs and replacements more often (and they’ll probably be more expensive!).

The other big reason a failing recirculate button should be fixed ASAP is that it’s simply uncomfortable. When working, recirculating can cool your car in just a matter of seconds. When it’s out and your car is forced to take in hot air from the outdoors, it can take minutes — and those minutes can be pretty uncomfortable, depending on the weather.

Why Does The Air Recirculation System Fail?

1. The button has failed - One common reason for failure is that the dashboard button for the recirculating system has blown its fuse or otherwise broken in another way. Make sure the car fuse for this system has not blown before trying to get the whole system repaired.

2. The air blowing motor is broken - Check the servo motor connected to the recirculation system in your car for functionality. 

3. The air intake door connected to the dashboard controls has broken - Under many passenger side dashboards there is an air intake door that opens and closes when pressing the air recirculation button. Make sure this door opens and closes properly when pressing the control button for the recirculation system.