In my old house, I tried using a 12-volt radio power
supply plugged into a GFI outlet, and the GFI always
tripped after a minute or so. When plugged into
another GFI outlet (the same brand of GFI!) it worked
fine.
Nothing else would trip the flaky outlet, not even a
table saw or a MIG welder. And both outlets tested OK
and I was quite sure there were no problems with the
wiring in the garage.
In my current house, there were two GFIs above a
countertop with a sink. They were probably less than
10 years old, and they had both failed: the test
button did nothing.
The moral of the story: Those GFIs can get flaky.
Doug
--- cornerexit <cornerexit@gmail.com> wrote:
> Well, I ended up running a long extension cord over
> to another outlet in the
> shop. This specific outlet itself is a non-gfci but
> it is "protected" by a
> gfci outlet that is further upstream in that
> particular circuit. I was able
> to run the treadmill off this non gfci outlet and
> using an extension cord
> with no problems, and it did not trip the downstream
> gfci outlet.
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