[RE-wrenches] Solaredge/LG

[Kirk Herander]

It must be a Storedge inverter, 7600 watt.
I would ask them for online access (if they have it) so you can see what if
any error messages are present, and what the SOC of the LG truly is, etc.
If the installer has abandoned it (they are most likely the administrator),
you will need the customer's credentials or get the site transferred to
yourself, which requires paperwork. Have they any photos of the inverter
display when it is supposedly charging? The battery itself displays a
charging icon also. You can find clues by scrolling through the LCD
display when onsite.

About the only simple thing it could be, if everything else is OK, is the
AC bypass switch in the DC disconnect set to pass grid AC directly to the
loads. For normal operation it should be in the left-most position,
right-most for AC passthrough.


On Fri, Dec 12, 2025 at 9:29 AM Michael Morningstar via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Wrenches,
> I'm in unfamiliar territory here. I got a call from someone who has a
> Solaredge/LG Chem system. Here is what they are saying:
>
> Solomon says our solar panels are charging the LG battery but somewhere
> there is no connection from the LG battery to power our house when we need
> the battery back up.  When there is a power outage we have no back up power
> to the house.  When the system was first installed we got maybe 30 minutes
> of back up power once and then after that it was dead, and it just stopped
> charging or giving us any back up power at all.
>
> The LG battery was recalled and we assumed that was why it hadn’t worked-
> we had it replaced about two years ago and we can see that it is getting
> charged by our panels but we do not get any back up power to the house when
> there is a power outage.
>
> I have zero experience with either Solaredge or LG and could use some
> advise to know where to start or what to look for when I go out to
> troubleshoot.
>
> Thanks,
> Michael
>
> --
>
> Michael Morningstar
>
>
> Morningstar Electric Inc
>
> PO Box 1494
>
> Mount Shasta, CA 96067
>
> 530-921-0560
>
> CSLB 1116835
>
> mjmorningstar at gmail.com
>
>
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-- 


*Kirk Herander / **kirkh at vermont.solar <kirkh at vermont.solar>*

*Owner|Principal, VT Solar, LLC*

*Celebrating our 34st Anniversary 1991-2025!!*

dba Vermont Solar Engineering

802.559.1225
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