522 DC low String 1 - Low DC voltage from solar string 1.

What does 522 mean?

A warning message on the display indicates that the DC voltage from the first solar string (MPPT1) is too low. This can lead to reduced power generation from your solar panels.

• Insufficient solar irradiance (e.g., shade, dirty panels).
• Faulty solar panels in String 1.
• Wiring issue in String 1.
• MPPT tracker issue.

Click steps to track your progress.

1. 1

   Check for any shading on the solar panels connected to String 1.

2. 2

   Inspect the solar panels and wiring of String 1 for visible damage or disconnections.

3. 3

   If this status code keeps recurring, contact your system installer to investigate the PV array.