Dyson Air Purifier Error Code F14: How to Fix It

Easy 5-15 minutes Medium Severity Verified June 2026
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Error Code
F14
Brand
Dyson
Product Type
air_purifier
Severity
Medium
DIY Difficulty
Easy
Estimated Fix Time
5-15 minutes
Error code F14 on your Dyson air purifier indicates a problem with the PM2.5 sensor, which measures fine particulate matter (PM2.5) in the air. This can be caused by dust buildup, a calibration issue, or a faulty sensor. Most cases can be resolved by cleaning or resetting the sensor at home without special tools.
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Tools You'll Need

How to Fix Error Code F14

  1. Unplug the Purifier and Let It Sit

    Always unplug before cleaning or servicing to avoid electric shock.

  2. Clean the PM2.5 Sensor

  3. Perform a Full Reset

  4. Check for Blockages

    Do not use a wet cloth or liquid near the sensor.

  5. Replace the PM2.5 Sensor (if necessary)

    Only replace with a compatible sensor. If unsure, contact Dyson support or a technician.

Parts You May Need

PM2.5 Sensor Module
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PM2.5 Sensor Module
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PM2.5 Sensor Module
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PM2.5 Sensor Module
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When to Call a Professional

If error code F14 persists after cleaning, resetting, and replacing the sensor, the main control board may be faulty. Contact Dyson customer support or a certified appliance technician for diagnosis and repair.

Frequently Asked Questions

What does error code F14 mean on a Dyson air purifier?
Error code F14 indicates a fault with the PM2.5 sensor, which measures fine dust particles. It usually means the sensor needs cleaning or is malfunctioning.
How do I clean the PM2.5 sensor on my Dyson air purifier?
Unplug the purifier, locate the sensor cover on the back or side, remove the cover, and gently clean the lens inside with a dry cotton swab. Avoid touching the lens with your fingers.
Can I reset my Dyson air purifier to fix error F14?
Yes, a factory reset often clears the error. Press and hold the 'Standby On/Off' and 'Auto' buttons for 10 seconds, then release. The unit will reboot and recalibrate the sensor.
Why does my Dyson air purifier keep showing F14 after cleaning?
If cleaning and reset don't help, the sensor may be defective. You'll need to replace the PM2.5 sensor module with a compatible replacement part.
Is it safe to use my Dyson air purifier with error F14?
The purifier may still operate but will not accurately detect PM2.5 levels, reducing air quality monitoring. It's best to fix the error to ensure proper function.

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