Hello, I would like to ask a question to see if anyone can help me. A few days ago I had a breakdown in the Multiplus II 48/5000/70 Inverter and in the Pylontech Us5000 batteries that I am waiting for to be returned repaired. The fact is that I have the MPPt 250/100 at home and when connecting to the photovoltaic panels I get these errors error 86 and error 39, is it normal because there is only the MPPT without connecting to anything or is it also broken? It also puts 127 volts on the panels and 123 on the battery when there is no battery
Why is it switched on if there is nothing (no battery) connected?
Just disconnect the panels.
There probably isn’t a permanent problem but there will be if you don’t shut it down.
Read the manual here.
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ALWAYS connected the battery first.
It’s not designed to work without battery.
You should disconnect the PV and hope that you didn’t kill the MPPT.
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