Event 3701 — Residual current too high, temporary grounding

What does 3701 mean?

The inverter has detected a high residual current, which is often caused by a temporary grounding of the PV array. This leads to the inverter interrupting its operation to ensure safety and prevent damage.

• Temporary grounding of the PV array.
• Insulation degradation or fault in PV array components, possibly due to moisture or physical damage.

Click steps to track your progress.

1. 1

   Check the PV system thoroughly for any ground faults, including module frames, mounting structure, and all wiring.

2. 2

   Look for signs of moisture, debris, or physical damage that might cause temporary grounding.

3. 3

   If the issue continues or cannot be identified, contact a qualified installer to diagnose and repair the PV system.