Grounding Cable Fault

Fault detected in AC earth/ground cable connection.

Common causes

AC ground/earth cable not connected or incorrectly connectedInsulation breakdown between ground cable and live wire

What to check

STEP 1

SAFETY: De-energise system before inspecting. Check AC earth cable is correctly connected at inverter AC terminal and at distribution board.

STEP 2

Check insulation integrity between earth cable and live wires.

Escalate if

Grounding confirmed correct but fault persists — contact Sungrow support

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