Hi,
setup is 2 MPPT 250/100 and one comes broken so was replaced for new one same type. They are connected with VE can and terminators on place. Older one group master start say #66. Both have same FW, same settings, VE smart disabled. It cames literally after new one MPPT was connected to system, never before happend with old MPPT.
Cerbo restarted and updated
Both MPPT has 3.16 FW
Any idea please?
The only time I’ve seen that error text was when the firmware versions of the solar charge controller and the Cerbo GX don’t match. I don’t recall if it was that error number, but it was the text.