Clean the head by removing blockages and washing the filter

The head of a Dyson vacuum — the part that sits on the floor and pulls in dirt — clogs with hair, dust, and debris over time. When airflow drops, suction weakens. You restore it by clearing the intake opening, removing tangled hair from the brush bar, and washing the filter. Most of this takes under 10 minutes and requires no tools beyond what comes in the box.

Dyson vacuums use different head designs depending on the model. Upright models have a motorised brush bar across the width of the head. Cordless stick models have a smaller brush bar or a flat suction-only head. Robotic models have a single brush or dual brushes underneath. The cleaning steps are similar across all types, but the exact layout changes, so check your manual for your specific model number before you start.

Key Takeaways

  • Turn off and unplug the vacuum before opening the head, and wait a few minutes for the motor to stop spinning.
  • Hair wraps around the brush bar and blocks airflow; remove it by hand or with scissors, then rinse the bar under running water.
  • The filter traps fine dust and loses suction when clogged; tap it gently over a bin to dislodge dust, then rinse it under cool water and let it dry completely before reinstalling.
  • Check the intake opening on the underside of the head for blockages like string or pet hair, and pull them out by hand.
  • Never use a washing machine, dryer, or hot water on any Dyson filter; heat damages the material and voids the warranty.

Unplug and wait before you open the head

Dyson heads contain a motorised brush bar that spins at high speed. If you open the head while the motor is running or still coasting to a stop, you risk hair or fingers getting caught. Always unplug the vacuum from the wall outlet first, then wait 30 seconds to a minute for the brush bar to stop completely.

On cordless models, press the power button once to turn off the motor, then unplug the battery from the handle. On upright plug-in models, switch the power to off and pull the plug from the wall. On robotic models, press the power button on the unit itself and wait for the indicator light to go dark before opening the head.

Remove hair and debris from the brush bar

Hair is the most common cause of reduced suction. It wraps around the brush bar in a spiral, blocking air from flowing through the head. You will see it as a visible band of tangled hair running the length of the bar. Remove it by hand first: pinch the hair and pull it away from the bar in the direction it is wound. For stubborn tangles, use small scissors to cut the hair close to the bar, then pull the pieces away.

Once the visible hair is gone, rinse the brush bar under cool running water. Hold the head under a sink tap and let water flow over the bar while you gently rotate it by hand. This removes dust and hair that is stuck in the bristles. Do not use hot water, as it can damage the motor seals. Do not soak the head in water or submerge the motor housing. After rinsing, shake the head over a sink to remove excess water, then set it upright on a towel to air-dry for at least 30 minutes before reinstalling.

Tap and rinse the filter to restore airflow

The filter is a pleated cartridge that traps fine dust before air exits the vacuum. Over time, dust builds up on the pleats and chokes airflow. You will notice suction dropping even after you have cleaned the brush bar. The filter is usually located inside the head or in the main body, depending on your model. Check your manual for the exact location.

Remove the filter by twisting or unclipping it, depending on your model. Hold it over a bin and tap it gently on the bottom and sides to dislodge loose dust. You should see a small cloud of dust fall into the bin. Do not bang it hard or tap it on a hard surface, as this can crack the pleats. Next, rinse the filter under cool running water. Let water flow through the pleats from the inside out, rotating the filter as you go. The water should run clear after 20 to 30 seconds. Shake off excess water and stand the filter upright on a towel to air-dry completely — this usually takes 4 to 24 hours depending on humidity. Never reinstall a wet filter, as moisture can damage the motor.

Check the intake opening for blockages

The underside of the head has an intake opening where air is drawn in. String, pet hair, or debris can lodge in this opening and block airflow completely. Flip the head over and look at the underside. You may see a slot or opening with a visible blockage. Reach in with your fingers or tweezers and pull out any hair, string, or debris you find.

If you cannot see a blockage but suction is still weak, shine a flashlight into the opening and look for a partial clog deeper inside. Some models have a removable cover over the intake that you can unclip to access the opening more easily. Check your manual for whether your model has this feature. Once you have cleared the opening, rinse it under running water to flush out any remaining dust.

Reassemble and test suction before use

Before you put the head back together, make sure all parts are dry. The filter must be completely dry — if it still feels damp, leave it for another hour. The brush bar should be dry to the touch. Reinstall the filter by twisting or clipping it back into place, depending on your model. Reattach the head to the handle or body by aligning the connectors and pushing or twisting until you hear a click.

Plug in the vacuum and run it for a few seconds over a hard floor or outside to test suction. You should hear a change in the motor sound — it will sound higher-pitched and more powerful than before cleaning. If suction is still weak, the filter may not be fully dry, or there may be a blockage elsewhere in the vacuum body. Let the filter dry for another few hours and test again.

How often to clean the head

The frequency depends on how much you use the vacuum and what you are cleaning. If you have pets or long hair, clean the brush bar every one to two weeks. If you vacuum mostly hard floors with light use, once a month is usually enough. Tap the filter every time you empty the bin to keep it from getting too clogged. Rinse the filter every two to four weeks, or sooner if you notice suction dropping.

Dyson recommends checking the filter monthly and replacing it every 12 months if you use the vacuum daily. Replacement filters are sold separately and cost between £30 and £60 depending on the model. Cleaning extends the life of the filter, but it will eventually wear out and need replacing. When water no longer runs clear after rinsing, or when the filter looks discoloured or damaged, it is time to buy a new one.

Frequently Asked Questions

Can I wash the head in a washing machine?

No. The motor housing and electrical connectors will be damaged by water. Wash only the brush bar and filter by hand under running water. The plastic head casing can be wiped with a damp cloth if needed, but do not submerge it or spray it with a hose.

What if the brush bar still spins slowly after cleaning?

The motor may be failing, or there may be a blockage in the motor shaft. Check that the brush bar is not bent or cracked. If it looks normal, contact Dyson support or take the vacuum to an authorised repair centre. Do not force the bar to spin by hand, as this can damage the motor.

Can I use a hair dryer to dry the filter faster?

No. Heat damages the filter material and can warp the plastic frame. Air-dry the filter at room temperature only. If you need to use the vacuum urgently, buy a second filter so you can rotate between them while one dries.

Is the brush bar supposed to stop spinning when I turn off the vacuum?

Yes. The motor should coast to a stop within 30 seconds of turning off the power. If the bar keeps spinning for longer than a minute, or if it does not spin at all when you turn the vacuum on, the motor may have a fault. Contact Dyson support.

What do I do if water gets inside the motor housing?

Do not use the vacuum. Leave the head unplugged and upright on a towel for 24 hours to air-dry completely. If water has entered the motor, it may cause electrical damage or corrosion. If the vacuum does not work normally after drying, contact Dyson support or take it to an authorised repair centre.