Why Does My Dyson Air Purifier Make A Whistling Noise?

The Dyson air purifiers are one of the most premium air purifiers you can get from the market. Yet, there are several issues with the device that may keep users on their toes. One of them is the device making a whistling noise, leaving the users questioning; why does my Dyson air purifier make a whistling noise?

Well, this may be because of dust and debris stuck to the air purifier. The noise usually comes from the filter or the fan. So, let’s take a closer look at the reason behind this noise and how to fix it.

Why Does My Dyson Fan Make a Whistling Noise

Multiple issues can make the fan make a whistling noise. Let’s go over them one by one.

Stuck Debris

While cleaning the air of any pollutants, purifiers inadvertently collect large particles on its filter and fan. Once this piles up, they tend to make a whistling noise.

The Loop Amplifier Setup Isn’t Proper

The Dyson air purifiers offer a unique design. It’s got a fan that has nothing in the center of it. The fan oscillates at an angle of 350 degrees, and it’s called a loop amplifier.

This loop amplifier can be customized with the Dyson app. However, improper setup of the loop amplifier can result in whistling noises.

Internal Malfunction

Sometimes an internal malfunction of the device can lead to a whistling noise. In most cases, the malfunction can be fixed with a simple reset. That is unless there’s something wrong with any of the device’s components.

How to Fix Dyson Air Purifier Whistling Noise

Now that you know what might be causing the whistling noise, it’s time to look into how to fix Dyson fan noises.

Reset the Air Purifier

As discussed, the air purifier might be making a whistling noise due to some malfunction that can be fixed with a simple reset. So, it’s recommended that you try resetting the device first.

To reset your Dyson air purifier, just turn the unit off and unplug the device. Keep the device unplugged for ten seconds before you plug it in again. This should reset the device.

Inaccurate Setup of Loop Amplifier

If that doesn’t solve the issue for you, then you should check the setup of the loop amplifier for any inaccuracies.

To set the loop amplifier up, you have to remove it first. Look around both sides of the device for two small buttons. Pressing on these buttons should open the hatches and let you lift the loop.

Then, fit the loop back into the body of the air purifier. This time, take caution not to leave any space between the fittings. Also, there shouldn’t be any unevenness between the loop and the lower body of the air purifier.

Clean the Filter

Did the last step not fix the problem for you? If not, you should try cleaning the filter. Just open the bottom part of the air purifier, and you should get access to the filter. Clean it using a brush.

Note that you shouldn’t use a vacuum cleaner to clean the filter, as this may damage the filter.

Read More: Why Is My Dyson Air Purifier Blinking F?


Dyson air purifiers make a whistling noise is a fixable problem. After learning the reasons, it’s time to get to fixing it. But what if these don’t fix the issue?

In rare cases, the motor might get dusty and make a whistling noise. You can easily get rid of this issue by cleaning the motor with synthetic grease. Hope this helps you fix the problem!

Last Updated on May 22, 2023

Richard Hicks

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