Event 088 (Sunny Portal: 4301)
Qualified person
Event message:
Serial el.arc in String |s0| detected by AFCI mod.
Explanation:
The inverter has interrupted the grid feed-in because an electric arc has been detected. After 5 minutes the inverter will attempt to start operation again.
Corrective measures:
Check the PV modules as well as the wiring in the affected string for damage.