What Causes a Dyson Hair Dryer To Lose Suction?

Dyson hair dryers are celebrated for their cutting-edge design and powerful airflow, often becoming the top choice for individuals seeking efficient hair styling tools.

However, even the best appliances can encounter performance issues. One common problem that Dyson hair dryer users may face is decreased airflow.

Understanding the causes can help you quickly troubleshoot and restore your hair dryer’s functionality.  If your Dyson hair dryer seems to be losing suction, it could be due to a few common issues.

One possibility is a clogged filter. As time passes, the filter collects various particles, such as hair, dust, and other debris, reducing airflow.

Cleaning the filter regularly according to the manufacturer’s instructions can often resolve this issue. Another potential cause is a blockage in the air intake.

Inspect the intake vents and remove any obstructions that might be impeding airflow. Additionally, ensure that the attachments are properly secured and that the dryer does not have cracks or damage, as these can also affect performance. Regular maintenance and careful handling can help maintain optimal suction in your Dyson hair dryer.

Common Causes of Dyson Suction Loss

Filter Issues

Dyson hair dryers are renowned for their innovative bagless technology and powerful suction. However, one common issue affecting their performance is related to filters.

Dyson models usually incorporate washable filters, which, if not regularly cleaned and thoroughly dried, can decrease suction power.

Filters congested with dirt and debris restrict airflow, making it difficult for the hair dryer to function effectively. Furthermore, washable filters can degrade over time and require replacement to maintain optimal performance.

Clogs and Blockages

A second prominent cause of suction loss in Dyson hair dryers is clogs and blockages in various parts of the machine, including hoses, ducts, and cyclonic assembly.

See also  Does Dyson Work Better On Wet Or Dry Hair?

Debris like pet hair, bits of paper, or even small objects can become lodged in these areas, disrupting the airflow and significantly diminishing suction.

These blockages are common in households with pets or where the hair dryer cleans up fine particles like drywall dust or flour, which can accumulate and harden inside the air pathways.

Mechanical Failures

Mechanical issues may also lead to decreased suction in Dyson hair dryers. Problems can arise from worn-out or damaged components, such as the change valve mentioned in a Dyson Animal hair dryer support guide.

This valve, responsible for switching suction between the roller and the hose, can become jammed or fail to operate correctly, leading to inefficient cleaning modes.

Additionally, ageing hair dryers might develop leaks in the air passages or the hose itself, which can also result in a noticeable decline in suction performance.

Troubleshooting Steps for Restoring Suction

Checking and Cleaning Filters

To restore suction:

  1. Start by examining and cleaning the hair dryer’s filters.
  2. Check both the pre-motor and post-motor filters, as these are crucial for protecting the engine and maintaining clean exhaust air.
  3. In order to properly maintain the filters, i recommend you carefully follow the instructions provided by the manufacturer for washing and removing them, typically under cold running water.
  4. It is essential to let the filters dry thoroughly for the period of 24 hours prior to reattaching them.

This is vital, as a damp filter can harm the motor. If the filters appear worn out or perform poorly after cleaning, consider replacing them.

Inspecting for Clogs in Hoses and Change Valves

Next, inspect the hair dryer’s hose and change the valve for any clogs. For upright Dyson models, detach the hose and examine it for any obstructions or damage. Use a long, stiff object, such as a broom handle, to gently push through any blockages within the hose.

In cases where the change valve (the component that directs suction between the brush head and the hose) is suspected to be the issue, refer to the hair dryer’s manual for instructions on checking and cleaning this part. Sometimes, debris or small objects caught in the valve can prevent it from switching modes effectively.

See also  Are There Fake Dyson Hair Dryers?

Evaluating and Addressing Mechanical Issues

If suction has not improved after performing the filter and hose checks, more complex mechanical issues may be at play. Examine the hair dryer for any visible signs of wear or damage, particularly around the hose connections, the housing, and the internal air passages.

Check the belt that drives the brush bar, as a snapped or worn belt could compromise the hair dryer’s ability to pick up debris effectively, mimicking a loss of suction. Suppose these parts are intact, but the issue persists.

In that case, consulting with a professional repair service or contacting Dyson for support might be necessary to address potentially intricate mechanical failures inside the hair dryer.

Maintenance Tips to Prevent Future Suction Loss

Maintaining your Dyson hair dryer cleaner is essential to ensure it operates efficiently. Regular upkeep not only helps prevent suction loss but can also extend the life of your hair dryer. Here are several tips to keep your Dyson in top condition:

Regularly Empty and Clean the Dust Bin

Ensure to empty the dust bin after each use or when it is about halfway full. Overfilled dust bins can restrict airflow, leading to decreased suction. Cleanse the container by using warm water in combination with a gentle cleaning agent, and make sure it is scorched before replacing it.

Clean and Replace Filters According to Instructions

Your Dyson hair dryer comes with filters that need to be cleaned to maintain optimal performance. Follow the manufacturer’s instructions for cleaning the filters. Some are washable, but all filters should be replaced periodically to ensure effective dust capture and airflow.

  • Pre-motor filter: Wash with cold water and let it dry completely, ideally for 24 hours, before reinserting.
  • Post-motor filter: If your model has a post-motor filter, clean it regularly and replace it as needed.

Check and Clear Blockages Regularly

Always check for clogs in the hose, ducting, and cleaning head, especially if you notice a drop in suction. Debris and large particles can easily block air passages. Disconnect the hose and use a long, thin tool, like a coat hanger, to gently remove any blockages.

  • Hose: Inspect both ends of the hose and the entire length for trapped debris or damage, like holes or tears, which can also cause loss of suction.
  • Brush bar: Hair and fibres often get tangled in the brush bar; cut them away carefully and clear any debris blocking the nozzle.
See also  How Do I Know If My Dyson Hair Dryer Motor Has Gone Bad?

Maintain and Inspect the hair dryer’s Seals.

Check the seals and gaskets on your Dyson hair dryer to ensure they are not worn out or damaged. These components are crucial for maintaining strong suction as they help seal the airflow. Make a replacement of any seals that display signs of wear to prevent air from leaking.

Store Your Hair Dryer Properly

Keep your dyson securely ina cooll, dry place out of direct sunlight when not in use. Stay away from regions that have a significant level of moisture in the air, which can affect the electronic components and the efficiency of the filters.

By adhering to these uncomplicated maintenance guidelines, you can help ensure that your Dyson hair dryer continues to perform at its best and mitigate any potential issues with suction loss.

Proper maintenance not only facilitates effective cleaning but also extends the lifespan of your appliance, ensuring that your investment in a Dyson continues to yield returns in clean, dust-free living spaces.


Regularly checking and maintaining the various components is crucial to ensuring your Dyson hair dryer maintains optimal performance.

Blockages, dirty filters, and worn-out parts are common culprits of suction loss. By following the troubleshooting steps outlined, such as clearing blockages, cleaning or replacing filters, checking the integrity of hoses, and ensuring the cyclone and dirt containers are clean, you can often restore full functionality to your hair dryer.

Remember, proper and regular maintenance not only restores suction but also extends the lifespan of your Dyson hair dryer, allowing for efficient and effective cleaning throughout its use.

If you’ve exhausted all DIY fixes and the problem persists, don’t hesitate to contact Dyson support or seek professional repair to ensure your hair dryer returns to its optimal state.

Leave a Reply