SMA WB 3000-21 - Manual (Page 18)

4 LED Signals SMA Solar Technology AG
18 WB3-5TL-21-BA-en-10 User Manual
4 LED Signals
The LEDs indicate the operating state of the inverter.
Description Status Explanation
Green LED Glowing Operation
Flashing Requirements for connection to the electricity grid have
not been met.
Red LED Glowing Failure
• Contact installer.
Blue LED Glowing Bluetooth communication is activated.