SMA America, LLC
9 Troubleshooting
Installation Manual
SB3-5TLUS22-IA-en-10
77
3. Determine the location of the ground fault via the ratio of the two measured voltages.
4. Eliminate the ground fault.
5. Commission the inverter (see Section 7.2).
6. If there is no ground fault and the message continues to be displayed, contact the SMA Service
Line.
Example: Location of the ground fault
The example shows a ground fault between the second and third PV modules.