The LED light on the front of your Grobo shows the different states that your Grobo One is in. Below you can see what each colour and pattern means for your Grobo:
Pulsing Pink: Grobo One is booting up, your unit will be ready to start growing soon!
Solid Green: Grobo One is ready to connect to the internet. Follow instructions on how to connect to WiFi.
Pulsing Light Blue: Grobo One is connected to the internet and running as it should be!
Fast Blinking Light Blue: Grobo One has lost connection to the internet. It should reconnect on it's own in a few minutes. If not, unplug and plug the unit back in to get connected again!
Pulsing Orange: Grobo One is growing your plant but it’s lost the internet connection. You’ll only be able to use the Grobo app when your Grobo One reconnects to WiFi.
Otherwise these all look pretty good. 
Pulsing Blue: Grobo One is in a special mode Ex. Filling, draining, door unlocked
Solid Red: Grobo One has a critical error - if this occurs for longer than a few minutes, try resetting your Grobo.
If that does not work, please contact our support team: support@grobo.io. 
Blinking Purple: Grobo One is flashing new firmware. Firmware is like the brain of your Grobo. We will periodically push updates to your Grobo to better your growing experience, so you don't need to worry about this one!
Still have questions? Please contact our support team!