Dyson Vacuum Pulsing (even after filter cleaning)

The airflow of a vacuum cleaner is very important for maintaining good suction power. If an air duct is blocked or there is a blockage, the air can no longer flow through. The suction power is lost and the vacuum cleaner can even break.

To prevent damage in the event of a blockage in the air duct, a Dyson may pulse. This is an audible function, where the Dyson starts to stutter. The vacuum cleaner stops functioning immediately to prevent any damage. In this article I will tell you why a Dyson pulses and how you can solve this problem.

Dyson pulsates due to airflow problems

A Dyson is designed to pulse, so don't worry that your motor will break or your Dyson will get stuck: “The device is designed to pulse. This is an audible function that indicates a restriction of airflow and damage to the motor. This is usually caused by a blockage in the unit or a clogged filter,” says Dyson on its website.

The pulsing can best be described as a Dyson stuttering or stuttering. It seems like the Dyson turns on and off in quick succession. When a Dyson pulses you can hear this clearly. In many cases, a blue light will blink too.

The pulsing can best be described as a Dyson stuttering or stuttering. It seems like the Dyson turns on and off in quick succession.

Causes: blockage in air duct or filters

The pulsing of a Dyson is not for nothing: the vacuum cleaner indicates that there is a problem with the airflow. This may include the following problems:

• A blockage in the vacuum cleaner itself
• A blockage in the vacuum cleaner rod
• Blockages in the attachments
• Clogged or worn filters

After the stutter, the Dyson will stop functioning immediately. This is not without reason: if an air duct of a vacuum cleaner is blocked, the air can no longer flow through. Not only does the suction power decrease: the Dyson vacuum cleaner can also no longer cool down.

Make Dyson stop pulsing

To make a Dyson stop pulsing, you will have to look for the blockage in the vacuum cleaner. I have made a checklist to quickly discover the location of the blockade.

1. Remove all Dyson parts from the vacuum cleaner
2. Now check if the Dyson is still pulsing
   • Does the vacuum cleaner still stutter? Then the blockage can be found in the vacuum cleaner itself. Empty the dust container and check the air inlets
   • Does the Dyson stop pulsing? Then there may be a blockage in the vacuum cleaner rod or in one of the Dyson parts. Go to step 3
3. Check the vacuum cleaner rod and suction brushes for blockages and remove them
4. Click all parts back on the Dyson vacuum cleaner and check that the Dyson no longer pulses when you turn it on.
   • Does the Dyson stop pulsing? Then the problem is solved!
   • Does the Dyson pulse again? Go to step 5
5. Remove the filter from the Dyson vacuum cleaner and check whether it is dirty. Cleaning a Dyson HEPA filter is easy, so don't hesitate to do this if in doubt.

Not familiar with the different airways of a Dyson vacuum cleaner? In the manual for a Dyson airway blocked I show all possible locations for a blockage.

Dyson pulses after filter cleaning

If you've thoroughly cleaned the Dyson filter (and let it dry for at least 24 hours), but the pulsing still hasn't gone away, you probably need to replace the Dyson filter.

Although a Dyson filter is washable, you should still replace it at least once every twelve months.

* Replacing a Dyson filter is not difficult, but it is important to buy the right one. Always keep the serial number of your Dyson to hand (find out here which Dyson you have).

Robbert Tigchelaar

Robbert Tigchelaar is the founder of Vacuumtester.com and is a true vacuum cleaner guru. With more than 10 years of experience in the world of electronic devices, he knows better than anyone what is important in a vacuum cleaner. When a new vacuum cleaner appears, he is eager to test it extensively.