Dyson Hot+Cool Formaldehyde HP09
27 m²
Question about Dyson Hot+Cool Formaldehyde HP09
I have a warning triangle in the display. It won't go away. Why
Try holding down the night switch for a few seconds.
It may go away.
I also had to do this after changing the filter.
It may go away.
I also had to do this after changing the filter.
I've had the same problem, it's a manufacturing defect. You need to report it to Dyson.
Unplug the Dyson from the power supply for a few minutes. Also check that the filter is inserted correctly
