All the Purifier Humidifiers have an onboard LCD screen, which along with displaying relevant air, pollutant, and environmental data, can from time to time display an alert. These alerts indicate when the machine has encountered an issue or is in the process of updating the onboard software.
To help you identify the different alert types, we’ve includes a summary of each of these.
Triangle alert icon
Triangle alert icon
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/6501b2d4-5e6b-4436-af2c-b2492413e1c1.png)
Tank empty
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/1502808c-c1ac-4022-9a32-9ed24895d621.png)
Drip trey overflow
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/5c68a28c-9e00-4356-9537-8118d135cf22.png)
Tank missing
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/0dd5cfe2-a813-4fed-a155-bed672588b81.png)
Broken pump column
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/c46fddcf-7b95-46f4-b118-1e32bb9445fd.png)
Pump rotor failure
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/8fe8a1d0-868e-4406-964f-81974dc47f23.png)
Updating screen
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/e790a024-d170-4028-9663-b67d7b9893e6.png)
Wrong PSU (power supply unit) warning
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/f19687ac-69c2-436c-9c27-120f4ea3911c.png)
Too cold
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/7a2fc4d8-19b7-4372-8742-ac5aec26dcbd.png)
Evaporator full
![](https://uploads-eu-west-1.insided.com/dyson-en/attachment/9ec705a0-8d63-4c7f-a803-f6b832728c59.png)
For assistance with each of these alerts, simply click on our Guides and manuals link, select your machine from the list, click on the ‘Troubleshooting’ option and then select ‘Display showing an alert’.
The ‘Display showing an alert’ screen provides an overview of all these different alert types, their image and description, along with an in-depth step by step process to rectify the alert.