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SolarEdge · SolarEdge SE3K–SE10K (three-phase inverter with power optimizers, SetApp) · Procedure

How to read an error and safely restart a SolarEdge three-phase inverter

Summary (editorial)

The error can be read in SetApp or from the LEDs. The manual describes the safe order for switching the inverter off and on.

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

From the manufacturer's documentation (English source wording, with page)

  1. Move ON/OFF/P switch to P for 2 seconds and release to show error type on LEDs[1]
  2. Red LED on bottom panel indicates an error; codes shown in SetApp and monitoring[2]
  3. LED table: arc / isolation-RCD / grid / high temperature / pairing / other[3]
  4. Switch OFF reduces optimizer voltage to safety voltage and inhibits export; control circuitry stays powered[4]
  5. After OFF wait until green LED blinks (DC < 50 V) or five minutes[5]
  6. Disconnect AC by turning OFF circuit breakers on distribution panel[6]
  7. Switch ON starts optimizers and power production[7]
  8. Cover may be opened only after switch OFF and 5 minutes wait[8]

⚠ 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. [1] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 51 official manufacturer document quote verified Move the ON/OFF/P switch to P position for 2 seconds and release it
  2. [2] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 51 official manufacturer document quote verified a red LED indicates an error
  3. [3] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 51 official manufacturer document quote verified Isolation or RCD problem
  4. [4] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 22 official manufacturer document quote verified OFF (0) - Turning this switch OFF
  5. [5] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 61 official manufacturer document quote verified indicating that the DC voltage is safe (<50V)
  6. [6] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 43 official manufacturer document quote verified Disconnect the AC to the inverter by turning OFF the circuit breakers on the distribution panel
  7. [7] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 22 official manufacturer document quote verified Turning this switch ON (after power optimizer pairing) starts the
  8. [8] Installation Guide – Three Phase System with SetApp Configuration, Europe (MAN-01-00505-1.8, 2024-10) (MAN-01-00505-1.8) , p. 8 official manufacturer document quote verified Wait five minutes before opening the cover