I have grid tied system with 5Kwa invertor, solar panels and a lithium battery. The system was installed 2 months ago. Over the last week the VRM system displays 0 when the AC input is running but when I turn the AC input off at the system DV the data displays fine. Also when AC input is running the system defaults to “keep battery charged mode”. There is no alarm warnings and the system seems to otherwise operate fine.
has anyone noticed lose experienced this or have a fix ?