How do I fix Neutral Point Grounding Fault on a Sigenergy?

Check functional ground is effectively connected to external ground Then: Check L (L1, L2, L3) and N connections are correct and not reversed

Sigenergy

3005

Neutral Point Grounding Fault

Off-grid scenario: high voltage between N and PE, or L and N reversed (European gateway).

Common causes

Functional ground not effectively connectedL and N connections reversed

What to check

STEP 1

Check functional ground is effectively connected to external ground

STEP 2

Check L (L1, L2, L3) and N connections are correct and not reversed

Escalate if

Wiring confirmed correct and fault persists — contact Sigenergy support via mySigen App > Support > Troubleshooting

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