The AC2A was being used as a UPS for a cable modem, switch and router drawing a total of 30 watts. I had tested it several times by pulling the AC cord and it worked perfectly as a UPS and then suppled power to those units for 6-7 hours. A few days ago, we had a real power outage and the AC2A failed by shutting down. When I powered it back up the power button started blinking and there were 2 alarm icons flashing (fault and overload alerts), the AC and DC inverters would not turn on and the battery percentage display was at 99%.
In the app there was an error code of E074 (BMS System Fault). When going into the battery status the BMS was in standby. Tapping the group 1 battery icon I checked the alarm, error and protection status and it showed “no data” for all three.
Bluetti, is this fixable with an update? My SN is 2340000683737. My current ARM is v2084.04, DSP is v2100.04 and BMS is v2100.04.