What to do if my SMA 9000TL Inverter shows '!PV-Overvoltage! - !DISCONNECT DC!'?
- MMark BrennanAug 17, 2025
If your SMA Inverter displays '!PV-Overvoltage! - !DISCONNECT DC!', this indicates overvoltage at the DC input. You should disconnect the miniature circuit-breaker, remove the ESS, and unlock and remove all DC connectors using a screwdriver. Then, verify that the DC voltage is below the inverter's maximum input voltage.