Event 3501 — Insulation failure, ground fault detected

What does 3501 mean?

The inverter has detected a ground fault (also known as an insulation fault) within the PV array. This means there is an unintended electrical path from the live conductors to the ground, which can be dangerous.

• Ground fault within the PV system (e.g., damaged cable insulation, moisture ingress, faulty component).

Click steps to track your progress.

1. 1

   Check the entire PV system, including modules and wiring, for any signs of ground faults.

2. 2

   Inspect all DC cables for damage, cracks, or signs of wear.

3. 3

   If the fault cannot be located, contact a qualified electrician or your PV system installer for a thorough inspection and repair.