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Deye · Deye SUN-SG04LP3-EU (three-phase hybrid inverter, 5–12 kW) · Procedure

How to restart a Deye SG04LP3 inverter safely (and when to stop)

Summary (editorial)

A restart helps with temporary faults. Use the switches, not the cables: DC and AC switches off, wait one minute, switch on again. If the code keeps returning, call the installer.

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

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

  1. Turn off DC and AC switch, wait one minute, turn on DC/AC switch[1]
  2. On/Off button on the left side of the case[2]
  3. AC and DC circuits disconnected separately; maintenance personnel wait before working (5 min, manual_checked line fact)[3]
  4. Disconnect all wires before any maintenance[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. [1] Hybrid Inverter User Manual – SUN-5K/6K/8K/10K/12K-SG04LP3-EU (ed. 2024-08) (V3.3.0 (instructions_sun-5-12k-sg04lp3-eu_240813_en)) , p. 47 official manufacturer document quote verified wait for one minute and then turn on the DC/AC switch
  2. [2] Hybrid Inverter User Manual – SUN-5K/6K/8K/10K/12K-SG04LP3-EU (ed. 2024-08) (V3.3.0 (instructions_sun-5-12k-sg04lp3-eu_240813_en)) , p. 32 official manufacturer document quote verified simply press On/Off button
  3. [3] Hybrid Inverter User Manual – SUN-5K/6K/8K/10K/12K-SG04LP3-EU (ed. 2024-08) (V3.3.0 (instructions_sun-5-12k-sg04lp3-eu_240813_en)) , p. 3 official manufacturer document quote verified The AC and DC circuits must be disconnected separately
  4. [4] Hybrid Inverter User Manual – SUN-5K/6K/8K/10K/12K-SG04LP3-EU (ed. 2024-08) (V3.3.0 (instructions_sun-5-12k-sg04lp3-eu_240813_en)) , p. 4 official manufacturer document quote verified disconnect all wires before attempting any maintenance