Battery - parallel addressing failure
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
Re: Battery - parallel addressing failure
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.
Re: Battery - parallel addressing failure
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.
Re: Battery - parallel addressing failure
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.
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Re: Battery - parallel addressing failure
highly likely missing the two rj45 bypass plugs are not fully installed. They get missed all the time.
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Fox ESS Tri Inverter Installation
2 x KH Hybird Inverters (Parallel Mode)
1 x H1 Gen1
24 x HV2600 (62.4kWh)
32 x 490w across 4 arrays
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Heatpump & Low Carbon Housebuild
Re: Battery - parallel addressing failure
OK. Sorry, but where do they go and can I find them in the box? Is it on the inverter?
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Site Admin
Re: Battery - parallel addressing failure
They come in the battery box. Two small connectors. They look like blanks but they have a small wire in them
Community Admin / FoxESS Elite Professional

Click to Buy me a coffee or Click to Book a zoom meeting for remote consultancy

Subscribe to my YouTube channel for FoxESS content Here

Fox ESS Tri Inverter Installation
2 x KH Hybird Inverters (Parallel Mode)
1 x H1 Gen1
24 x HV2600 (62.4kWh)
32 x 490w across 4 arrays
Dual Tesla Household
Heatpump & Low Carbon Housebuild
Re: Battery - parallel addressing failure
I found one. Should there be two? Where is the jumper between which pins? Should they be link in and link out?
Re: Battery - parallel addressing failure
there is a jumper between pin 1 and 6.
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Re: Battery - parallel addressing failure
Thank you very much. I taste it in thne next days
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