[RE-wrenches] Context XW+ Random Factory Defaults

Sat May 31 13:04:42 PDT 2025

Yeah, someone sold a bunch of Conext XW+ owners a bunch of Pytes batteries
to replace lead acids. I have been dealing with a variety of issues. This
particular system has 100kWh of battery capacity with a 10kW PV system that
is heavily shaded and poorly oriented. It's never going to charge the
battery to 100% without significant generator run time given the base load
of the property.

In this case the batteries could not have cut out before the XW reached
LBCO. That would have required a manual battery reset or black start. And
because it is open loop, it could not have been a communication glitch.

On the SCP, I found them both with device address zero and both set to
Master. It really looked like they were both in a factory default state. I
don't understand how that happens simultaneously. I'm really curious to see
if it happens again and to see if the device names change back to the
default, which would clearly indicate they are being reset to factory
defaults. I can't imagine anything else on the Xanbus would be writing
device names to the inverters. The only other thing I can think of would be
something coming from the cloud.

Jason Szumlanski
Principal Solar Designer | Florida Solar Design Group
NABCEP Certified Solar Professional (PVIP)
Florida State Certified Solar Contractor CVC56956
Florida Certified Electrical Contractor EC13013208

On Sat, May 31, 2025, 12:57 PM Dave Angelini Offgrid Solar via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Monday thru Friday. They may tell you that XW+ is not a good match with
> LFP unless the user knows what they are doing. XW pro was made to close
> loop and communicate with the bms. Since there were no faults logged it
> sounds like the battery cut out before the XW LBCO, which is wrong as you
> know and this was fixed on XWpro.  XW's should not change their master
> slave set-up unless they were really glitched or one has damaged memory.
> They should repower as they were set-up. Below is how it should look in
> set-up.
>
> Good Luck!
>
>
>
>
>
> *Dave Angelini Offgrid Solar
> "we go where powerlines don't"
>    <http://members.sti.net/offgridsolar/>https://offgridsolar1.com/ <https://offgridsolar1.com/>  <http://members.sti.net/offgridsolar/>
> e-mail  offgridsolar at sti.net <offgridsolar at sti.net>
> text 209 813 0060*
>
>
> On 2025-05-31 7:16 am, Jason Szumlanski via RE-wrenches wrote:
>
> Are they open on Saturdays? It doesn't really matter anyway because I went
> out to the remote island on an emergency basis this morning, and we have a
> big storm rolling in, so we had to hightail it out of there. I wouldn't
> have had time to call.
>
> I definitely intend to get in touch with them for any advice they might
> have. I was hoping to get some clues from anyone with similar experiences.
>
>
> Jason Szumlanski
> Principal Solar Designer | Florida Solar Design Group
> NABCEP Certified Solar Professional (PVIP)
> Florida State Certified Solar Contractor CVC56956
> Florida Certified Electrical Contractor EC13013208
>
> On Sat, May 31, 2025, 10:04 AM Jay <jay.peltz at gmail.com> wrote:
>
>
> Have you been able to get in touch with Schneider tech support?
>
>
>
> On May 31, 2025, at 7:45 AM, Jason Szumlanski via RE-wrenches <
> re-wrenches at lists.re-wrenches.org> wrote:
>
> I have a new service client with dual XW+. When I first went out a couple
> of weeks ago, the LFP batteries had completely shut down due to low battery
> voltage. I had to jump start them with a Chargeverter. I discovered that
> the inverter low battery cutoff was 44 volts, which is lower than the
> battery BMS cut out. I also found the AGS set to manual off, and I believe
> the voltage triggers were defaults, but I am not certain.
>
> There is an AGS, SCP, two MPPT 60 150, one MPPT 100 600, and an Insight
> Home on the Xanbus Network. The owner cannot figure out how to access the
> Insight Cloud, and I could not access the device on the local network with
> the default password. Therefore, I am working with the SCP only for
> settings.
>
> I adjusted the settings on the inverters and AGS and checked all other
> settings. We tested the generator functionality. Everything seemed great.
>
> Fast forward to this week, and the system had a complete shutdown. I went
> out to the remote location today and found the inverters in standby. I
> tried to enable them, and received an F66 error. I dug in and found that
> they both had the same modbus address 00 and they were both set to split
> phase master. Everything else appeared to be factory defaults. Low battery
> cut out was sent to 44 volts again. The AGS had disappeared from the
> network on the SCP. The batteries were at 100% because the charge
> controllers were charging the batteries with solar for the last couple of
> days with no load present. After power cycling the inverters, the AGS
> reappeared on the SCP. The settings in the AGS were exactly as I had left
> them last time.
>
> It appears that the inverters went back to factory defaults, but
> everything else seemed okay.
>
> The only relevant thing in the fault logs was a low battery condition F48
> fault that occurred six days ago. Then, 18 hours later, multiple F66 errors
> (5 or 6) occured over a 2-hour span. It appears this is when the inverters
> reverted to factory defaults.
>
> I don't work on a lot of Schneider inverters, so I am looking for any
> insights, no pun intended, that you may have about this behavior.
>
> I changed the names of the inverters from the factory default in the SCP.
> If the settings do revert to factory defaults again, I'm hoping this will
> be an indication if the names also revert.
>
> One more piece of information. I seriously doubt that the occupants of the
> property messed with anything in the SCP. However, I strongly believe that
> they were flipping breakers, particularly on the solar charge controllers.
> It's possible that turning off a controller messed up the Xanbus, but I
> don't see what that would have to do with settings getting changed.
>
> Jason Szumlanski
> Florida Solar Design Group
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
> _______________________________________________
> List sponsored by Redwood Alliance
>
> Pay optional member dues here: http://re-wrenches.org
>
> List Address: RE-wrenches at lists.re-wrenches.org
>
> Change listserver email address & settings:
> http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org
>
> There are two list archives for searching. When one doesn't work, try the
> other:
> https://www.mail-archive.com/re-wrenches@lists.re-wrenches.org/
> http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org
>
> List rules & etiquette:
> http://www.re-wrenches.org/etiquette.htm
>
> Check out or update participant bios:
> http://www.members.re-wrenches.org
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20250531/1418fb26/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: b3342044.jpeg
Type: image/jpeg
Size: 10376 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20250531/1418fb26/attachment.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: dde7b80a.jpeg
Type: image/jpeg
Size: 11613 bytes
Desc: not available
URL: <http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org/attachments/20250531/1418fb26/attachment-0001.jpeg>