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

Alarm 2087Internal fan abnormal

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

In plain words (editorial)

The internal fan is faulty (short-circuited, under-powered or damaged); the inverter reduces its power. The manual's procedure: turn off the AC and DC switches, wait 5 minutes and turn them back on.

When to call a service technician: If the fault persists after the device runs for 5 minutes, contact your dealer or Huawei technical 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] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 79 official manufacturer document quote verified 2087 Internal fan abnormal
  2. [2] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 79 official manufacturer document quote verified the internal fan is short-circuited, the power supply is insufficient, or the fan is damaged.
  3. [3] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 79 official manufacturer document quote verified turn off the ac switch and dc switch, wait for 5 minutes, and then turn on the ac switch and dc switch. if the fault persists after the device runs for 5 minutes, contact your dealer or technical support to replace the d…
  4. [4] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 78 official manufacturer document quote verified the device power is derated.