Just changed to brand new filters on TP04 but error won't go away. : r/dyson
Dyson Pure Humidify+Cool Air Purifier Review: One Of The Best Air Purifiers, Now Humidifies
Support | Dyson Pure Cool™ air purifier (TP04) White/Silver
My Dyson TP04 is on 999 and has been for several days. I have taken the filters out, wiped them down(dry, not wet), reset the filter and nothing has helped. I am