Victron error code BMS connection lost
The charger has lost the connection to the battery management system that controls it (Smart IP43: via the remote on/off L and H terminals). Indicated by the LED error pattern in the manual's error-state table.
What to check, and in what order, is in the app. The flow Solar installed but battery not charging walks this code step by step with the pass/fail measurements, wiring schematics and procedures that go with it, and it works offline in the bay.
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- 109244-smart_ip43_charger_120-240v-pdf-en.txt
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