exclamation on display for HP03 | Dyson Community
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I’ve removed the device from my app, reset the device to factory settings twice, and power cycled it. 
 

I still have the exclamation mark on a number of settings. How do I fix it? I think I still have it under extended warranty 

Hi @Lfrohling,

Welcome to the Dyson Community! 

As you’ve already tried all the troubleshooting checks we can recommend via the Dyson Community forum, to help pinpoint the cause we'll need our Customer Care experts to take you through some further troubleshooting checks when you have your Dyson Pure Hot+Cool™️ purifier fan easily to hand. If a repair or replacement is needed, they’ll be able to discuss your options with you.

Please visit Dyson.com and click Support to get in touch with the right Dyson Customer Care team for your region.

We'll look forward to speaking with you!