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Solis RAI-3K-48ES-5G and Pylontech US5000 battery not working

FarmingMartin

New Member
Joined
Dec 1, 2022
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48
Had a retrofit battery fitted two weeks ago and it does not seem to be working. It does not charge from my panels or discharge when needed. The installer has returned today and checked everything out but can't find the problem.
All settings on inverter he said are correct as is the wiring.
What he has discovered is the battery seems to turns off when he turns on the main grid supply switch to the inverter.
However the battery lights up when the main supply is turned off.
The charge level is showing roughly 80% charged.
It has also been noted that sometimes the battery will "come to life" and start to charge from the grid for about 5 minutes before switching off again.

Solis RAI-3K-48ES-5G and Pylontech US5000 battery.

Any idea what could be causing this?
 
and in case anyone is wondering, the fix is detailed here... ;)

 
and in case anyone is wondering, the fix is detailed here... ;)

Thanks forgot to mention that
 
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