Dyson Air Purifier Error Code F6: How to Fix It

Easy 10-15 minutes Medium Severity Verified June 2026
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Error Code
F6
Brand
Dyson
Product Type
air_purifier
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
10-15 minutes
Error code F6 on a Dyson air purifier (humidifier models) indicates a UV-C lamp fault. The UV-C lamp is used to kill bacteria in the water tank. This error typically means the lamp needs cleaning or replacement. Follow these steps to resolve the issue.
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Tools You'll Need

How to Fix Error Code F6

  1. Unplug the Air Purifier

    Always unplug the device before servicing to avoid electric shock.

  2. Remove the Water Tank

  3. Locate the UV-C Lamp

    Do not touch the UV-C lamp with bare hands; oils from skin can damage it. Use a cloth or gloves.

  4. Clean the UV-C Lamp

  5. Replace the UV-C Lamp (if needed)

    Ensure the replacement lamp is specifically designed for your Dyson model.

  6. Reassemble and Test

Parts You May Need

UV-C replacement lamp
Check Price on Amazon
UV-C replacement lamp
Check Price on Amazon
UV-C replacement lamp
Check Price on Amazon
UV-C replacement lamp
Check Price on Amazon
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When to Call a Professional

If cleaning and replacing the UV-C lamp does not clear error code F6, the issue may be a faulty lamp driver or control board. Contact Dyson customer support or an authorized technician for further diagnosis.

Frequently Asked Questions

What does error code F6 mean on a Dyson air purifier?
Error F6 indicates a UV-C lamp fault in the humidifier function. The UV-C lamp is failing or needs cleaning.
Can I use my Dyson air purifier with error F6?
It is not recommended. The UV-C lamp is essential for killing bacteria in the water. Using it without a working lamp may affect air quality and hygiene.
How often should I replace the UV-C lamp in my Dyson air purifier?
Typically, the UV-C lamp should be replaced every 12 months or as indicated in your user manual. Signs of a failing lamp include dimming or error code F6.
Where can I buy a replacement UV-C lamp for my Dyson air purifier?
Genuine Dyson replacement lamps are available on Dyson's website or authorized retailers. Amazon also carries compatible third-party options — check your model number.
Is it safe to clean the UV-C lamp with water?
No, never use water or liquid cleaners on the UV-C lamp. Use a dry, soft cloth to gently wipe off dust. Liquids can damage the lamp and cause electrical hazards.

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