SMA America, LLC
9 Troubleshooting
Installation Manual
SB3-5TLUS22-IA-en-10
61
9 Troubleshooting
9.1 LED Signals
The LEDs indicate the operating state of the inverter.
LED
Status
Explanation
Green
Is lit
Operation
If an event occurs, the event message is shown in the display
(see Section 9.2).
Flashing
Conditions for connection to the grid are not fulfilled.
flashes quickly The inverter is performing an update.
Red
Is lit
Error
The display shows the error message and event number
(see Section 9.3).
Blue
Is lit
The inverter has set up a connection to a communication product
and data transmission is active.
Flashing
The inverter is setting up a connection to a communication product
but data is not yet being transmitted.
All LEDs have gone out
If all three LEDs have gone out, the inverter is switched off because the switch of the
DC Disconnect is set to
Off
or insufficient irradiation is available.
• Set the switch of the DC Disconnect to
On
.
