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Air Quality measures seem to high and driving fan high to

  • November 19, 2021
  • 3 replies
  • 255 views

Both PM2.5 and 10 are pegged at 999 and have been for a few days. I don’t think it’s accurate given two other fans in the house measure at nominal levels. Anyway to reset the machine or otherwise get it to read air quality accurately?

(Edited by moderator – tags added)  

Best answer by JoeB

I had this issue a while ago and I  vacuumed the sensor intake on the rear of the unit and it fixed the issue 

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3 replies

Stuart
Dyson Community Manager
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  • Stuart - Dyson
  • 549 replies
  • November 19, 2021

Hi @hereandnowness thanks for posting a question.

Check out the My machine/App shows a 999 Severe reading, what do I do? article in the Common questions section for help. 

Feel free to @Me if you have a follow up question. 

Thanks, 

Stuart


  • New Member
  • 1 reply
  • Answer
  • November 20, 2021

I had this issue a while ago and I  vacuumed the sensor intake on the rear of the unit and it fixed the issue 


  • Author
  • Rookie Member
  • 1 reply
  • November 20, 2021

Thanks to all. The swabbing didn’t work, but the vacuuming did. 


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