Huawei · PV inverters · Huawei SUN2000-KTL-M1 (three-phase inverter, 3–10 kW, battery-ready)
Alarm 2093DC Switch Status Abnormal
Name in the manufacturer's documentation (fault list): DC Switch Status Abnormal
[1]
In plain words (editorial)
A DC switch is not in the ON position, or its reset button is not pressed fully down. The manual warns: if a DC switch is off while the device is running, do not turn it on directly.
When to call a service technician: Contact your installer or Huawei technical support.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Possible causes (source text)
- The dc switch is not in the on position, or the dc switch reset button is not pressed down to the bottom.[2]
Steps given by the manufacturer (source text)
- If any dc switch is off when the device is running, do not turn on the switch directly. contact your vendor or technical support.[3]
- If any dc switch is off during the first power-on, do not turn it on directly. check the cable connection as required. if an exception is found, rectify it and turn the switch to on (if the switch cannot be turned to the on position, press the reset buttons of all dc switches inwards until they cannot go further). if no exception is found, contact your vendor or technical support.[4]
⚠ 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. 86 official manufacturer document quote verified
2093 DC Switch Status Abnormal
- [2] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 86 official manufacturer document quote verified
the dc switch is not in the on position, or the dc switch reset button is not pressed down to the bottom.
- [3] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 87 official manufacturer document quote verified
if any dc switch is off when the device is running, do not turn on the switch directly. contact your vendor or technical support.
- [4] Inverter Alarm Reference (Issue 14, 2026-06-15) (EDOC1100345192 Issue 14) , p. 87 official manufacturer document quote verified
if any dc switch is off during the first power-on, do not turn it on directly. check the cable connection as required. if an exception is found, rectify it and turn the switch to on (if the switch cannot be turned to the…