Percyvan Posted May 14, 2022 Posted May 14, 2022 Hi, I have the Growatt inverter and Pylontech battery connected to PV array. The battery is charging but I can't get the BMS working, when setting program 5 to L1 and 36 to LO2 I get error 20 and 04. When I change program 5 to US2 the error disappears and L1 flashers on Screen next to battery icon, how to know if BMS is working.Thank you Quote
percy Posted May 14, 2022 Posted May 14, 2022 I have changed the wiring of the communication cable pins, the error 20 do not show up any more, but error 04 show up although the battery is fully charged. The L1 icon next to battery is solid not flashing as previously.Any further advice will be appreciated. Quote
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