The short answer
Shut down via the app, switch the battery DC switch off and check power and comm cables between the modules.
Plain explanation
From the Huawei manual for the LUNA2000-S0 battery: Send shutdown command in the app. Installer switches the battery DC switch off. 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
- Send shutdown command in the app
- Installer switches the battery DC switch off
- Installer checks power and comm cables between power module and expansion modules
- Switch back on (after 5 min for 3006/3007)
- Persists → dealer
Source
Huawei LUNA2000-(5-30)-S0 User Manual V17 (2024-05-30), EDOC1100167258, §8.3 Table 8-2 (printed p118+) – distributor mirror, Alarms 3006/3007/3013, Table 8-2ske-solar.com ↗
Where installers ask this
- Help needed: Huawei Luna2000 S1 (r/solar)
- reddit.com/r/SolarUK/comments/1v9u0fj/
- reddit.com/r/solar/comments/zo7nd7/
- reddit.com/r/DeutschePhotovoltaik/comments/1oruzh5/
- reddit.com/r/SolarDIY/comments/15p5umd/
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.