[RE-wrenches] XW Pro and the spoiled stuff if the fridge

[Matt Sherald]

I did look at those historical events.  Not a thing there.

I agree that the list is a bit hidden.

-Matt

On Wed, Jun 18, 2025 at 3:27 PM Dave Angelini Offgrid Solar via RE-wrenches
<re-wrenches at lists.re-wrenches.org> wrote:

> I would say did you look at historical events? It is easy to miss that and
> you only see current events. Is there surge protection on all the usual
> places? Not a fan of AC coupling XW.  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/>
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> text 209 813 0060*
>
>
> On 2025-06-18 12:12 pm, Matt Sherald via RE-wrenches wrote:
>
> Hi All,
>
> I'm writing to ask if anyone else might have run into a similar situation.
> My customer came home to dead circuits after being out of town for several
> weeks.  They are grid-tied and have a BBUS with an XW Pro.  Their PV array
> is AC-coupled (Enphase IQ7+).
>
> When they arrived home all of the critical load circuits were dead.  The
> other circuits were working fine.  The internet router was dead.
> I got called and made a visit.  The XW was not feeding AC through to the
> loads and it was not charging the batteries.
>
> Two battery status lights on the XW were illuminated.  A value "279" was
> displayed.  The small LED next to the "A"  for charging was illuminated.
> No other green LED was on - no AC1, no AC2, no Event, no Equalize  .  The
> batteries had been discharged, but were well above the LBCO.  I tested the
> grid and it was 60Hz with 240V.  All good there.
>
> There is no SCP.  This is one of the early installs with a Gateway and I
> did not have computer stuff to get a look at any codes or other status
> info.
>
> Perplexed, and a bit frustrated, I turned off the main DC 250A breaker and
> let it sit for a couple of minutes.  Then I turned the breaker back on and
> the XW worked just as one would hope - the grid connected through AC1 and,
> in turn, powered the critical loads and began charging the battery.
>
> I thought that I would be able to find some answers once things were back
> online and I got home to the office where I could look at Insight and
> Enlighten.  Looking at the Enlighten data I could see that production had
> ceased ten days prior to my visit.
>
> Insight has no recorded Alarms/Warnings/Events for this time period.
> The XW load and battery discharging data show very little draw throughout
> the period which makes me believe the AC loads were not powered and the
> battery drain was attributable to idle consumption of the XW, Gateway and
> Battery Monitor.
>
>
> A series of thunderstorms coincided with the loss of data reporting.  The
> neighbors, when asked, offered that they had lost an internet router to the
> same storms. They said that they didn't recall a power outage, but their
> router was cooked and their PV system (Enphase) had stopped working
> requiring them to contact tech support.
>
> My gut is that a surge on the Gateway's CAT cable triggered the XW's
> relays to open and stay open.  The system seems to be working just fine now
> and doesn't appear to have suffered lasting damage.  Not so for the venison
> in the freezer.
>
> I'd love to hear from anyone who may have had a similar experience with
> the XW or who feels like they have a fair guess as to what caused the
> problem.
>
> -Matt
>
>
>
>
>
>
>
>
>
>
>
> --
> Matt Sherald
> PIMBY Energy, LLC
>
> 304-704-5943
>
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-- 
Matt Sherald
PIMBY Energy, LLC
304-704-5943
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