If you get this failure please verify your connections are correct on your battery.
Below are one of many examples we see everyday on how people connect their batteries. These are NOT CORRECT.
This picture below has the top left negative (that goes to the inverter in the wrong position) and it doesn't have the link port from the master battery to the slave battery. We also recommend to put all dip switches down on all batteries.
This picture below has the master on the bottom so that means the Negative (black wire) that goes to the inverter should be on the last inverter.
This is how you correctly set it up.
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