"Gerry Atrick" wrote in message
...
In my kitchen, my espresso machine is making the GFCI trip. When
plugging something else (such as toaster), it doesn't trip.
Also, plugging the espresso machine to another GFCI in my kitchen, it
doesnt' trip neither.
So is it due to the espresso machine or shall I just change the GFCI ?

BOTH.

The machine is close to the upper limit on "leakage" and the GFCI is on the
lower side of the sensitivity threshold.

Is it a good sized machine with a grounding (3 conductor) plug, does it have
a polarized plug (one blade wider than the other) or is it "double
insulated" using a non-polarized plug (both blades the same width)?

Anyway, if you can, reverse the plug and see if it still trips. If it
does, put in a new GFCI (they are relatively cheap). If it still trips,
consider junking the machine unless it has a three conductor (grounding)
plug.