Huawei · PV inverters · Huawei SUN2000-KTL-M1 (three-phase inverter, 3–10 kW, battery-ready)
Alarm 2008DC Bus Not Securely Connected
Name in the manufacturer's documentation (fault list): DC Bus Not Securely Connected
[1]
This page only quotes the original English documentation. A plain-language explanation has not been written yet, so the page is not indexed by search engines.
For technicians
Possible causes (source text)
- The dc bus of the device is not securely connected.[2]
Steps given by the manufacturer (source text)
- Power off the device (turn off the ac switch and dc switch, and wait for a period specified on the device safety warning label), and then perform the following operations: check whether the dc terminals are connected securely. if not, adjust the dc bus cable connection.[3]
⚠ 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] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 22 official manufacturer document quote verified
2008 DC Bus Not Securely Connected
- [2] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 22 official manufacturer document quote verified
the dc bus of the device is not securely connected.
- [3] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 22 official manufacturer document quote verified
power off the device (turn off the ac switch and dc switch, and wait for a period specified on the device safety warning label), and then perform the following operations: check whether the dc terminals are connected sec…