[RE-wrenches] Outback Charge controllers resetting to default settings

[Nick Lucchese]

Yes, it keeps happening to me as well. At least 8 times now. The first
couple times I blamed myself and thought I had made the rookie default
settings mistake I see on other's sites but now I know better. Only the
FM100. Just got back from a site that resulted in the client's Radian
shutting down due to battery volt sense faults from it. First time it has
caused shutdowns though. Looks like her Blue Ions had been sitting at 57.6
for months now. Unfortunately she has Hughesnet that almost never works
with Opticsre otherwise I would have caught it. Extremely frustrating, I've
easily eaten enough service calls and equipment failures for Outback over
the years that I could have paid off a Toyota Yaris. No exaggeration.

Nick

On Fri, Jan 9, 2026 at 2:58 PM Zeke Yewdall via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Has anyone else had issues with outback charge controllers resetting to
> default settings?  I just had a FM100 do this (and shut the whole system
> down because the default settings were too high of voltage for a 15 cell
> LFP, so the battery turned itself off for protection).  The logs show that
> the values were set to 0 from the proper settings, then to the default
> settings from 0, on site.  But no one was on site.  I changed them back
> remotely via opticsRE, and it logged me as changing them back, as it should
> have.
>
> Occasionally in the past I've had similar things happen, and always kind
> of chalked it up to the customer perhaps messing with the system, but this
> time I know that no one was there to adjust it locally at the time that it
> says it was changed.
>
> I have another site this week that does not have opticsRE, that the FM100
> may have reset to default settings as well.  Same thing -- lithium
> batteries shutting off from overvoltage all of a sudden.  I am still
> investigating that one.
>
> Zeke
>
> --
> Zeke Yewdall
> PV Engineer
> NABCEP #031508-89
> zeke at darkforestsolar.com
> 303-523-3592
> _______________________________________________
> 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/20260110/3834ff06/attachment.htm>