SMA SB 3800-U - Manual (Page 54)

Displays and Messages
7-6 SMA America SB3800U-12:SE2006
LED Fault Indicators
Ground Fault
The inverter has detected a ground fault in the PV system and has disconnected from the
grid. The ground fault must be located and fixed before the inverter will resume
normal operation.
The inverter will not restart automatically. Refer to Section 8:
“Troubleshooting” for information on solving PV array ground faults.
Note: All GFDI faults are disabled in turbine mode.
Cleared GFDI Fuse
The GFDI fuse located in the fuse holder on the bottom of the inverter has been cleared
or is not present. This fuse is used to protect the PV system in the event of an array
ground fault. Troubleshoot the PV array for ground faults prior to replacing this fuse.
CAUTION: For continued protection against the risk of fire,
replace the GFDI fuse with fuses of the same type and rating
only. The SB3800U is shipped with a Littelfuse KLKD 1 Amp,
600V AC/DC
type fuse.
Red LED is on
Yellow LED is on
Red LED is on