Problem with the USB port on the Multiplus_II_3000_GX

[R.C (Cywiński Rafał)]

Hello everyone.

I’m having a minor problem with my Multiplus II 3000 GX inverter. The USB port has stopped working. That is, it supplies power, but it no longer recognizes the Smart Solar charger. I know the charger is working because I tested it by connecting it directly to the ve.direct port (instead of the shunt port). Is there any way to reset it to get it working again? I’m worried a ground loop occurred during service. Has anyone else had this problem, and is there any way to fix it? Or is the inverter only suitable for repair?

[lxonline (LX)]

Multiplus II 3000 GX USB died

I’m using the USB on my Multiplus II 3000 GX as a VE direct connection to an MPPT that suddenly stopped working. I won’t get any response using the USB port anymore and there are no other ports to try. Can I reset the USB or see if it’s faulty in any way? I see no fault code/message.

There are other options.

[DirkW]

Try to connect the ve.direct to usb cable to a smartphone or PC with Victron Connect and see if communication with the solar charger is possible.