The short answer
No. Wait until string current is below 0.01 A, turn the DC switch off, then correct the polarity.
Plain explanation
From the Huawei manual for the SUN2000 inverter: Do NOT open the DC connectors under load. Wait until the string current is below 0.01 A (night/low light). The rest of the checklist is below; work through it in order. Installer only: DC and AC work on a live PV system is dangerous, so owners should note the code and call their installer.
Steps from the source
- Do NOT open the DC connectors under load
- Wait until the string current is below 0.01 A (night/low light)
- Turn the DC switch OFF
- Installer corrects the string polarity
- Clear via app, or AC+DC off for 5 min and on
Source
Huawei Inverter Alarm Reference, Issue 09 (2024-11-01), EDOC1100345192, Alarm 2011, §12, p16files.keno-energy.com ↗
Where installers ask this
General guidance based on the manufacturer's manual or the named source. Always follow the current manual for your exact model and your national code. DC and AC electrical work is for qualified installers only. Not affiliated with or endorsed by any brand named; trademarks belong to their owners.