502 Insulation error on the solar modules - Electrical insulation issue on PV modules.

What does 502 mean?

A warning message appears on the display, indicating an insulation error detected on the solar modules. This is a safety concern that can affect operation.

• Damaged insulation on PV module wiring.
• Moisture ingress into modules.
• Physical damage to modules causing ground faults.

Click steps to track your progress.

1. 1

   Inspect the solar modules and all visible wiring for any signs of damage or moisture.

2. 2

   Check for any debris or obstructions that might be causing a short to ground.

3. 3

   If this status code keeps recurring, contact your system installer to perform a detailed insulation test of the PV array.