Question :

I have a Dyson Pure Cool 2018 ( TP04 ) fan-less air cooler / purifier, and it works great – I can even  monitor & control it from the DysonLink.app on my iPhone. Now time has come to replace the HEPA and carbon filters, so I got a new set of those. I got the old wones out and put the new ones in, turned the Pure Cool back on, and now it keeps giving a ‘replace immediately’ warning again…

What is wrong ?

Answer :

You probably replaced both the carbonfilters and both the HEPA-filters just fine, as that is rather simple. But judging from the error message you are getting, you forgot to reset the software. To do so, do this :

• unplug the Dyson Pore Cool 2018 ( TP04 ) from power
• replace both carbonfilters (skip this if you just renewed them)
• replace both HEPA filters (skip this if you just renewed them)
• replug the power
• switch ON (using the power button on the Pure Cool’s body)
• press the ‘night’-button (bottom right) on the remote control until the countdown starts
• wait for the countdown to finish
• press the ‘left/right’-button (bottom left) on the remote control until the countdown starts
• wait for the countdown to finish
• you will now see green checkmarks for both filters on the display
• press the ‘AUTO’-botton (middle right) on the remote control to put the Pure Cool back into automatic mode
• use the DysonLink.app for further settings (like using Siri or Alexa, Google Home is currently not supported)

that’s it !

enjoy 😉