SolarEdge · PV inverters · SolarEdge SE3K–SE10K (three-phase inverter with power optimizers, SetApp)
Error 2xFThe SolarEdge system normally eliminates DC overvoltage errors.
Name in the manufacturer's documentation (fault list): The SolarEdge system normally eliminates DC overvoltage errors.
[1]
In plain words (editorial)
DC overvoltage – which the SolarEdge system normally eliminates. The manual's check: switch the inverter OFF; if after five minutes the display does not show the low safety voltage (1 V per optimizer), a string is malfunctioning and its connections need rechecking.
When to call a service technician: Have your installer check the strings and optimizers.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Steps given by the manufacturer (source text)
- Turn OFF the inverter ON/OFF switch. If after five minutes, the LCD panel does not show a low safety voltage (1V per optimizer), check which string is malfunctioning and recheck its connections to the inverter[2]
- Proceed according to Power Optimizer Troubleshooting[3]
- Re-commission all inverters in the site, as described in Commissioning the Installation[4]
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 12 official manufacturer document quote verified
2xF The SolarEdge system normally
- [2] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 12 official manufacturer document quote verified
Turn OFF the inverter ON/OFF switch. If after five minutes, the LCD panel does not show a low safety voltage (1V per optimizer), check which string is malfunctioning and recheck its connections to the inverter
- [3] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 12 official manufacturer document quote verified
Proceed according to Power Optimizer Troubleshooting
- [4] SolarEdge Inverters Error Codes and Troubleshooting – User Guide (Version 1.2, 2026-09) (se-inverter-installation-guide-error-codes (v1.2)) , p. 12 official manufacturer document quote verified
Re-commission all inverters in the site, as described in Commissioning the Installation