Purifier - HP04 turns off even though no timer is set. | Dyson Community
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The unit turna off permanantly after some period of time. Every morning I have to turn it back on. Any ideas why?

Hello @Pisees 

If you are using your HP04 in heat mode, it will automatically shut itself off, after 9 hours of continuous use. To restart the machine, just press the on/off button again to turn the machine back on.