Why Does My Dyson Air Purifier Make a Whistling Noise?

Last Updated on March 15, 2024

The air purifiers from Dyson are one of the high-end devices in the market. Some models have a unique design, making them stand out a lot. But the thing is, even though the Dyson air purifiers are high-end and offer excellent overall performance, they are still suspected of showing issues over time.

Among all the usual issues that users face with Dyson air purifiers, the question of why does my Dyson air purifier make a whistling noise is pretty common. Well, this noise may be coming out of the fan or filter. And it might be because the fans or the filter are clogged with dust and debris.

Now, how Dyson fan high-pitched noise fix the issue? To know that, you must stick with this guide until the end.

How to Fix Dyson air purifier high pitched noise?

If you have been using the Dyson air purifier for quite a while now, you might hear the Dyson air purifier whistling sound at one point. But you should not worry much about this unusual sound as it is pretty easy to fix. You just have to follow these steps:

Step 1: Turn the Device Off and Unplug It

First and foremost, you will need to turn the air purifier off. Dyson devices should come with a remote controller, which you can use to turn the air purifier off. You can also press the device’s standby on/off button to shut the machine off.

After turning it off, unplug the power cord from the wall outlet. Turning the device off before working is vital because if you try to disassemble the machine when it is operational, you can damage the internal parts. That will make you get expensive replacements and repairs.

That said, do not start to disassemble the air purifier right after turning it off. Instead, wait for at least a minute and then move to the next step.

Step 2: Remove and Clean the Filter

Next, you will need to work with the filter unit of the air purifier. Press the two buttons that are on the side of the loop amplifier. That will make the amplifier come off, and you should have access to the filtration unit of the device. After that, you need to rinse the filter with cold water.

Holding the filter under running tap water should do the trick. However, make sure that the water is not warm. That will damage the filtration unit, and you will need to replace it afterward.

Additionally, do not just put the filter back into the Dyson air purifier right after cleaning it. Instead, let the filtration unit dry up properly.

Step 3: Clean the Debris In The Inside

While the Dyson air purifier is open, take a peek inside. Check whether the fan has any debris and dust buildup or not. This debris buildup can restrict the fan’s movement, making it make an unusual noise. So, if you find dust and debris buildup, get yourself a vacuum cleaner and clean the inside.

Step 4: Place the Filter and Loop Back into Place

At this point, you will need to put the filter and the loop back into place. For the filter, make sure that the placement is correct. It should get back into the same slot that it originally was. Without placing it correctly, the air purifier will not be capable of performing optimally.

The same thing applies to the loop. Remember, there should not be any uneven gap between the main body and the loop. If you find any opening, lift the loop and place it back correctly.

Step 5: Clean the Loop and Turn The Device On

Get yourself a dry cloth and clean the body of the loop. Sometimes, dust that settles on the surface can quickly get to the inside of the air purifier. After cleaning the loop, plug the air purifier into the wall outlet and turn it on through the remote or the button. Dyson fan high pitched noise shouldn’t occur anymore.

video credit: Dyson

Step 6: Reset the Device (Optional)

After putting things back together, the air purifier might not operate normally. In such a case, you should reset the device. And doing that is pretty simple. You just need to hold the ON/OFF button that is on the remote for at least six seconds. That will reset the air purifier.

Likewise, you can use the Dyson app to reset the air purifier. Go to my Dyson app and click on the Dyson Life option. In that section, you will find an option for resetting the device. Click on it and wait for the air purification device to shut off and turn on automatically.

See More: Dyson air purifier f code

What If the Sound Does Not Go After You Clean the Filter and Fan?

You might still hear a Dyson fan whistling noise after cleaning the filter and the fan of the Dyson air purifier. In that case, you need to carry out a further inspection. Turn the device off and disassemble it. Lift the loop and remove the filter. In this case, you will be taking a look into the motor.

Sometimes, the motor might not be in place, or the motor might have dust clogged up inside. If the motor is sitting loosely, tighten the flanges and see if the issue is still there or not.

But if you see a lot of dust on the motor, we would recommend adding some synthetic grease to the bushings. The whistling noise might be coming out because the motor is having trouble spinning. And when you add the synthetic grease, the spindle will face less friction, eventually eliminating the unusual sound.

How Long Does the Filter of Dyson Air Purifiers Last?

Dyson recommends replacing the air filtration unit after every 12 months. However, in some cases, you need to replace it earlier. You see, the lifespan of the filtration unit will depend on two factors. The first one is the use case, which is how much you use the air purifier throughout the day.

On the other hand, it will depend on the air condition where you placed the air purifier. If the device needs to do a lot of work to purify the air around you, the filter will require a replacement sooner than usual.

That said, the air filters can sometimes last longer than a year. In this case, the air purifier might not be doing a lot of heavy lifting as the air in the indoor environment might be relatively clean. Still, you should consider 12 months to be the average lifespan of the filter.

On that note, you should not run the air purifier with a bad or clogged-up filter. It will make the device release more particulates into the air and polluted air can harm your health. So, frequently clean the air filter and replace it every 12 months.

Final Words

Are you still worried and asking yourself why does my Dyson air purifier make a whistling noise? The noise might be coming out due to a dirty fan and filter. And as you know by now, cleaning the fan or filter is enough to solve the issue. So, just follow the steps instead of worrying about the whining or whistling noise.

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Paul M Walker

I, Paul M Walker, am the founder and the author of this little site you are currently on. I work to provide readers with no-fuss and easy-to-follow solutions regarding common air purifier and humidifier problems.

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