FoxESS Community - Owners & Installers Forum

Have just commissioned our system which includes a Fox EP5 battery. This is showing a ‘parallel addressing failure’ and not charging/discharging with the inverter.

I can’t find any details of what this error means or how to solve it, so any suggestions very welcome!

Thanks

Do you have 2 inverters in parallel ?, that usually happens when it is configured to run in parallel and the wiring or addresses have not been set correctly.

Nope, it's just one inverter

Dave Foster wrote: ↑Sat Apr 26, 2025 4:06 pm Do you have 2 inverters in parallel ?, that usually happens when it is configured to run in parallel and the wiring or addresses have not been set correctly.

Hi Dave, thanks for the quick reply. I've found the issue - the blank plugs weren't inserted into the data sockets intended for parallel battery installation. Once the had been inserted and the battery re-started, the error went.

Hello. I have the same Problem at my Fox Ess EK5. My two caps are on and screwed on, but I have the same problem.

highly likely missing the two rj45 bypass plugs are not fully installed. They get missed all the time.

OK. Sorry, but where do they go and can I find them in the box? Is it on the inverter?

They come in the battery box. Two small connectors. They look like blanks but they have a small wire in them

I found one. Should there be two? Where is the jumper between which pins? Should they be link in and link out?