SMA Manual Recommendation
| Error No. | Explanation | Corrective measures |
| 3507 | A ground fault has occurred on the ungrounded pole of the PV array. | • Check the PV array for ground faults. |
Fault Description -
A ground fault occurred on the non-grounded portion of the array.
Troubleshooting Actions - The ground fault can occur on the non-grounded portion due to a wire insulation error. Check the array for any insulation errors that may lead to ground faults.