2002
DC Arc Fault
Huawei · SUN2000 Solar Inverter
What does 2002 mean?
An electrical arc has occurred in the PV string power cable, or there is poor contact within the DC wiring. This fault can lead to significant energy loss, equipment damage, and fire hazards.
Common Causes
- The PV string power cable arcs.
- The PV string power cable is in poor contact.
Repair Steps & Checklist
Click steps to track your progress.
- 1
Check whether the string cables arc.
- 2
Check whether the string cables are in poor contact.
Verified technical data. Last updated: March 2026
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Source: Huawei SUN2000 Solar Inverter