"croy" wrote in message
...

Ground rods will not keep a GFCI from tripping needlessy. Either it is
defective or there is a good reason for it to trip.

Well, something is sure causing them to trip. There's
nothing plugged into the circuit, and still they trip. New
ones do the same. Some one in this group said that if the
connection to earth is too far from the panel, that can
happen.

If that's not the cause, then the only thing I can think of
is induction along the run near other wires.

--

Who ever said that if the ground was too far from the GFCI would cause them
to trip is wrong. The gound wire has nothing to do with the tripping. The
GFCI monitors the current in the hot and neutral wires. If there is an
unbalance , they will trip. The usual way is when the hot wire finds some
other path back to the neutral on the other side of the GFCI or ground path.

If they trip with nothing plugged in, it is time to look at the wiring. It
is also possiable for moisture to get into the outlets.

One other thing is that it could be wired wrong. Some one could have picked
off the neutral or hot wire to run somewhere without the other wrie.