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Multiplus II not inverting

I have a Multiplus II 12/3000/120 that was working fine. It is connected to a Cerbo GX. I updated Firmware via VRM and adjusted the charger settings for my lithium batteries. Since doing that, the inverter does not come on. It charges fine but when I cut shore power, the inverter does not come on. I have 13 volts at the inverter terminals. I have the toggle in the "inverter and charger on" position. I have it set to "on" via the Cerbo. But when I cut shore power, it just shuts down completely: no lights on the unit or anything. Help much appreciated.

Multiplus-II
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Mike Dorsett avatar image Mike Dorsett commented ·
try rolling back the firmware update for the inverter?
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