Dyson Air Purifier Error Code F4: How to Fix It

Easy 5-10 minutes Low Severity Verified June 2026
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Error Code
F4
Brand
Dyson
Product Type
air_purifier
Severity
Low
DIY Difficulty
Easy
Estimated Fix Time
5-10 minutes
Error code F4 on a Dyson air purifier indicates that the filter has reached the end of its life. This is a low-severity issue that simply reminds you to replace the filter. Your purifier will continue to work, but performance may decline. Follow these steps to reset the error.
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Tools You'll Need

How to Fix Error Code F4

  1. Turn off and unplug the purifier

    Always unplug before servicing to avoid electrical shock.

  2. Remove the old filter

  3. Replace with a new filter

    Use only Dyson-approved filters to maintain performance and warranty.

  4. Reset the error code

  5. Verify the error is cleared

Parts You May Need

Dyson Replacement Filter
Check Price on Amazon
Dyson Replacement Filter
Check Price on Amazon
Dyson Replacement Filter
Check Price on Amazon
Dyson Replacement Filter
Check Price on Amazon
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When to Call a Professional

If the error code remains after replacing the filter and resetting, there may be a sensor or circuit board issue. Contact Dyson customer service or a certified technician for further diagnosis.

Frequently Asked Questions

Can I continue using my Dyson air purifier with error F4?
Yes, but the filter is no longer effective. Continued use may reduce air quality and strain the fan. Replace the filter as soon as possible.
How often does the Dyson filter need to be replaced?
Typically every 6-12 months, depending on usage and air quality. The F4 error appears after 12 months of use or when the filter is exhausted.
Is it safe to reset the error without replacing the filter?
You can reset the code, but the filter will still be exhausted. It's not recommended as the purifier will not clean the air properly.
Where can I buy a replacement Dyson filter?
You can purchase genuine Dyson filters from the Dyson website, Amazon, or authorized retailers. Always verify compatibility by model number.
Will error F4 damage my purifier?
No, it is a maintenance reminder. However, running the purifier with a clogged filter can reduce airflow and strain the motor over time, so replace promptly.

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