One cause of this issue is that your pump may not be connected to the Byte. This case is characterized by a flashing orange light on your LED button. In order to properly attach the pump, you will have to push on it until you hear a click (you can hear it in this video).
You can also try priming your pump by pouring a small amount of water slowly into the pump’s water spout. The pump may make a loud noise upon running for the first time if it has not been primed. Please make sure to dry the pump connection if it does get wet.
Hopefully, these steps are able to get you growing soon!🌱