Insulation fault (connection between solar module and ground)

What does 475 mean?

An insulation fault has been detected in the connection between the solar modules and ground. This means there's an unintended electrical path from the DC side to ground, which is a safety hazard.

• Degradation or damage to the insulation of DC wiring from solar modules
• Moisture ingress into PV connectors or junction boxes
• Ground fault within a solar module

Click steps to track your progress.

1. 1

   If this status code keeps recurring, contact your system engineer to perform insulation resistance tests on the solar module wiring.