SMA SUNNY BOY 4000-US - 8 Displays and Messages

SMA America, LLC Displays and messages
Installation Guide SB30-40US-IUS103030 63
8 Displays and messages
Each Sunny Boy inverter comes equipped with three LED status indicators. This allows the user to
determine the operatin
g mode of the inverter at a glance.
The green LED indicates normal operation of the inverter.
The red LED indicates the status of the GFDI fuse, located inside
the Sunny Boy. If this LED is lit, the GFDI fuse has cleared or is
not present.
The yellow LED indicates that there is a fault of some kind,
either inside the inverter or somewhere in the PV system. The
inverter will not operate until the fault has been corrected. The
different error codes and possible causes are addressed later
in this section and in Section 9”Troubleshooting” (page77).
The red and yellow LEDs combined indicate that the inverter
has detected a ground fault. The ground fault must be located
and cleared and the inverter reset manually. The inverter will
not restart automatically after detecting a ground fault. The
ground fault may also clear the GFDI fuse.
All GFDI fuses are disabled in turbine mode.