DC arc fault

What does 2003 mean?

The PV string power cables are arcing or have poor contact. This is a Major alarm indicating a potentially dangerous electrical fault in the DC circuit, requiring immediate inspection and rectification of the cable connections.

• The PV string power cables arc.
• The PV string power cables are in poor contact.

Click steps to track your progress.

1. 1

   Check whether the PV string cables arc or are in poor contact.