CPU v3.18xx and below - Error Code - 178-180
CPU v3.19xx and above - Error Code - 18xB2-4
Error Message: Vf1/2/3 Surge
Solutions: Ground Current Surge
- Check the AC connection to the inverter
- Check with the grid operator if a large surge source or irregular load exists near the site.
- If the grid does not problems contact SolarEdge support.