SMA SUNNY BOY 1300TL - 10 Troubleshooting; LED Signals

SMA Solar Technology AG 10 Troubleshooting
Installation Manual SB13_21TL-IA-en-65 45
10 Troubleshooting
10.1 LED Signals
Description Status Explanation
Green LED glowing Operation
The specific status message is shown in the display
(see Section10.2.2 "Status Messages", page46).
flashing Conditions for grid connection are not yet fulfilled.
Red LED glowing Earth fault or varistor defective
The specific fault or disturbance message is shown in the display
(see Section10.2.3 "Errors, Disturbances, Warnings", page47).
Yellow LED glowing Permanent operation inhibition
The specific fault or disturbance message is shown in the display
(see Section10.2.3 "Errors, Disturbances, Warnings", page47).
flashing Fault or disturbance
The specific fault or disturbance message is shown in the display
(see Section10.2.3 "Errors, Disturbances, Warnings", page47).
All LEDs are flashing
If the DC voltage is very low in the start-up phase, all three LEDs go out and the start-up phase
recommences. If irradiation is very low, all three LEDs flash. This flashing indicates a normal
operating state. It does not mean that a fault has occurred.
All LEDs have gone out
If all three LEDs have gone out, the inverter is switched off because the ESS is not plugged in,
the external DC switch-disconnector is not switched on, or there is no irradiation.