[RE-wrenches] GFCI tripping on grid outage

[William Miller]

THD. Noisy waveform.


William Miller
Miller Solar.com
805-438-5600
www.millersolar.com


On Tue, Mar 31, 2026 at 4:04 PM Jay via RE-wrenches <
re-wrenches at lists.re-wrenches.org> wrote:

> Hi all.
>
> I was asked recently about why GFCI outlets/breakers sometimes trip on
> grid outage. I had the same outage and this was the first time that some
> GFCI  breakers tripped and some but not all GFCI outlets as well.
>
> I don’t really have a good idea as to why that is.
>
> Any thoughts?
>
> Thx
>
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