Dyson Purifier Humidify+Cool User Manual page 14

Looking after your machine
To always get the best performance from your Dyson purifying fan,
it's important to regularly clean it and check for blockages.
Cleaning your machine
If your machine is dusty, wipe with a damp lint-free cloth.
Look for blockages in the air inlet holes on the filter and the small
aperture inside the loop amplifier.
Use a soft brush to remove dust and debris.
Don't use detergents or polishes to clean your machine.
Alerts
Continuous alert icon
Switch off and unplug your machine.
Leave for 10 seconds and then plug your machine back in and switch it on.
If the alert icon continues to show on the LCD screen, contact Dyson.
Temporary alert icon
If the alert appears on the LCD screen and then disappears,
continue to use your machine.
If any other alert icons show on the LCD screen,
contact Dyson for further advice.