SMA SB 3000TL-US - Manual (Page 21)

SMA America, LLC 4 LED Signals
User Manual SB3-5TLUS22-BA-en-14 21
4 LED Signals
The LEDs indicate the operating state of the inverter.
Designation Status Explanation
Green LED Is lit Operation
Flashing Requirements for connection to the power distribution
grid have not been met.
Red LED Is lit Error
• Contact your installer.
Blue LED Is lit Communication is activated.