3512

Remote GFDI detected permanent ground fault

SMA · SUNNY CENTRAL 500CP XT / 630CP XT Solar Inverter

What does 3512 mean?

The Remote GFDI (Ground Fault Detection and Interruption) device has detected a permanent ground fault. This indicates a persistent ground fault condition within the PV array that requires immediate attention. The inverter will stop feeding power until the disturbance is acknowledged and rectified.

Common Causes

  • Permanent ground fault in the PV array.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Check the PV array for permanent ground faults using an insulation resistance tester.

Browse all codes in this manual (29)
Verified technical data. Last updated: March 2026

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Source: SMA SUNNY CENTRAL 500CP XT / 630CP XT Solar Inverter