We are re-doing some electrical outlets and switches in our older home
(built 1954). We put a GFCI at the start of every branch. There is
one branch that keeps tripping the GFCI and I can't figure out why.
The wiring goes through the GFCI, to 4 other outlets, and through a
switch to this last outlet. we have determined that the switched
outlet is the problem.

We unplugged everything and turned the switch that controls the outlet
off. Then we turned the breaker on again, no trip. We plugged various

items into all of the other outlets, no trip. we turned on the light
that is controlled by the a different switch in the same box, no trip.
we turned the outlet on with the switch (nothing plugged in to it), no
trip. As soon as we plugged anything into it (we tried several items)
it would trip the GFCI every time. We tried having it plugged in and
then turning the switch on as well, still tripped. There is one red
wire coming into the outlet (hot from the switch) and two neutrals
coming out.


Can anyone point me in the right direction for what the problem might
be? Any help would be appreciated.


Thanks,
Steve