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

F1DC_Inversed Failure

Name in the manufacturer's documentation (fault list): DC_Inversed Failure[1]

In plain words (editorial)

The PV input polarity is reversed (DC inversed failure). The manual says to check the PV input polarity.

When to call a service technician: Have an installer check the PV polarity. If it does not return to normal, contact your installer or Deye support.

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

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] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 1 manufacturer document – copy from a distributor quote verified F1 DC_Inversed Failure
  2. [2] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 1 manufacturer document – copy from a distributor quote verified Check the PV input polarity
  3. [3] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 1 manufacturer document – copy from a distributor quote verified Seek help from us, if can not go back to normal state