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

F45AC_UV_OverVolt_Fault

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

In plain words (editorial)

Grid overvoltage between phases U and V – the grid voltage is out of range. The manual says to check that the grid value is within the specification and that the AC cables are firmly and correctly connected.

When to call a service technician: 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. 5 manufacturer document – copy from a distributor quote verified F45AC_UV_OverVolt_Fault
  2. [2] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 5 manufacturer document – copy from a distributor quote verified Grid voltage out of range
  3. [3] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 5 manufacturer document – copy from a distributor quote verified Check the voltage is in the range of specification or not;
  4. [4] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 5 manufacturer document – copy from a distributor quote verified Check whether AC cables are firmly and correctly
  5. [5] Deye Three Phase Hybrid Inverter SUN-5-12KWSG04LP3 Fault List , p. 5 manufacturer document – copy from a distributor quote verified Seek help from us, if can not go back to normal state.