<div dir="ltr">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.<br><div><br></div><div>Nick</div></div><br><div class="gmail_quote gmail_quote_container"><div dir="ltr" class="gmail_attr">On Fri, Jan 9, 2026 at 2:58 PM Zeke Yewdall via RE-wrenches <<a href="mailto:re-wrenches@lists.re-wrenches.org">re-wrenches@lists.re-wrenches.org</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>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.</div><div><br></div><div>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.</div><div><br></div><div>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.</div><div><br></div><div>Zeke</div><br><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr">Zeke Yewdall<div>PV Engineer</div><div>NABCEP #031508-89</div><div><a href="mailto:zeke@darkforestsolar.com" target="_blank">zeke@darkforestsolar.com</a></div><div>303-523-3592</div></div></div></div></div></div>
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