Deye · PV inverters · Deye SUN-SG04LP3-EU (three-phase hybrid inverter, 5–12 kW)
F3GFDI_Failure
Name in the manufacturer's documentation (fault list): GFDI_Failure
[1]
In plain words (editorial)
GFDI failure – the manual says to check the PV grounding, the PV-to-ground impedance and the leakage current.
When to call a service technician: Have an installer check the PV side. 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.
For technicians
Steps given by the manufacturer (source text)
⚠ 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] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 1 manufacturer document – copy from a distributor quote verified
F3 GFDI_Failure
- [2] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 1 manufacturer document – copy from a distributor quote verified
check whether the PV is grounded, secondly, check whether the impedance of the PV to the ground is normal, whether the leakage current
- [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