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Huawei · PV inverters · Huawei SUN2000-KTL-M1 (three-phase inverter, 3–10 kW, battery-ready)

Alarm 2092CT connection abnormal

Name in the manufacturer's documentation (fault list): CT connection abnormal[1]

In plain words (editorial)

The current transformer (CT) is installed on the wrong phase or in the wrong direction, or its cable is disconnected.

When to call a service technician: Have your installer check the CT installation and cable.

✎ 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] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 85 official manufacturer document quote verified 2092 CT connection abnormal
  2. [2] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 85 official manufacturer document quote verified the ct installation phase or direction is incorrect.
  3. [3] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 85 official manufacturer document quote verified the ct cable is disconnected.
  4. [4] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 85 official manufacturer document quote verified check whether the ct is installed in the correct direction.
  5. [5] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 85 official manufacturer document quote verified check whether the ct is installed on the correct phase.
  6. [6] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 85 official manufacturer document quote verified check whether the cable between the ct and the device is disconnected.