[RE-wrenches] VFX AC back-feed error

[Ray Walters]

Those relays get cooked when the pass through current gets too much.  I 
had a situation where a Tesla charger got installed on the backup loads 
panel, putting serious amps through the Outback relays.  For whatever 
reason the breakers didn't trip.  Definitely visible when the relay 
cooks as Jay mentioned.  In my case, the contact material was blown all 
over the inside of the clear case, and the plastic was stained dark with 
the smoke.

The other possibility with VFXRs is it needs a firmware update. I had a 
situation where a VFXR was going offline in the middle of the day, and 
taking half the backup loads panel with it.  Firmware finally fixed it, 
but I too was accused of mis wiring.  I LOVE when Manus blame the 
installer, and it turns out to be some BS on their end.  That was the 
one and only VFXR installation I ever did.

Ray Walters
Remote Solar

On 3/25/2026 12:02 PM, Jay via RE-wrenches wrote:
> It could be because of a welded relay.
> If it’s happening when there is no ac input that is something I’ve 
> seen before.  You’ll need a new AC board.
>
> I’m pretty sure the relays are clear cases and can be obvious to see 
> the damage.
>
> Jay
>
>> On Mar 25, 2026, at 11:45 AM, William Miller via RE-wrenches 
>> <re-wrenches at lists.re-wrenches.org> wrote:
>>
>> 
>> Friends:
>>
>> I am getting this error message even though the wiring is correct. 
>> I’ve seen this before but I am gradually losing my memory of Outback 
>> quirks as I move to other product lines.
>>
>> Is this resolved by resetting the inverter to defaults?
>>
>> Thanks in advance.
>>
>>
>> William Miller
>> Miller Solar.com
>> 805-438-5600
>> www.millersolar.com <http://www.millersolar.com>
>> _______________________________________________
>> 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/20260325/d40b00e1/attachment.htm>