SolarEdge UL1741-SA Installation Manual page 30

The main LED indications are:
Blue ON - the inverter is communicating with the monitoring platform
Green ON - the system is producing
Green blinking - AC is connected but the system is not producing
Red ON - system error
The following table describes system performance information by LED color and
ON/OFF/P switch position.
ON/ OFF/
Indication
Position
Power
optimizers not
paired
Pairing
Wake-up/ Grid
Monitoring
System
Producing
Night mode
(no production)
Inverter is OFF
(Safe DC)
Inverter is OFF
(DC not safe)
Single Phase Inverter with HD-Wave Technology Installation MAN-01-00541-1.4
Figure 12: LEDs
P
Switch
Red
OFF
Blinking
ON (1)
OFF
OFF
OFF
OFF
OFF (0)
Blinking
Chapter 3: Installing the Inverter
LED Color
Green Blue
S_OK: ON
Blinking
No S_OK: OFF
Blinking Blinking
Blinking Blinking
S_OK: ON
ON
No S_OK: OFF
S_OK: ON
Flickering
No S_OK: OFF
S_OK: ON
Blinking
No S_OK: OFF
S_OK: ON
Blinking
No S_OK: OFF
29
Comment
S_OK: ON
communication
with the
monitoring
platform is
established.