A ground fault? GFCI stands for "Ground Fault Circuit Interrupter".

Some wiring inside the Keurig is leaking electricity to the ground. Time to get a new one. Or you can try to pull it apart to see if you can locate the problem but it probably isn't worth the effort.

I suspect a ground-to-neutral fault is present in the unit. This is a hack test, but get one of those 3 prong-to-2 prong adapters (and don't connect the ground tab to anything) and see if it doesn't trip anymore.

"I suspect a ground-to-neutral fault is present in the unit. This is a hack test, but get one of those 3 prong-to-2 prong adapters (and don't connect the ground tab to anything) and see if it doesn't trip anymore."

Will that test tell me anything that I can likely fix?

I will check that strain relief clip when I get home. Thanks

Took the bottom of the unit apart, separated and examined the wires and could not find anything amiss. Called Keurig and they are sending me a new one! Even though mine is a couple of years old and out of warranty. That's a pretty good outcome. Thanks

Sounds like a solution. Not surprising when you realize that Keurig isn't selling coffee makers, they're selling overpriced coffee pods. Sort of like getting your cell phone for free when you sign up for service.

Note that if you had an older Keurig, you're going to lose the ability to use unofficial K-CUPS in the thing (unless you want to fool it by taping a small portion of the foil from a real k-cup to the sensor...there are youtube videos on how to do this).

I hate the coffee from those machines. My wife uses it. I have my own coffee maker. Thanks for the tip on the foil.

I think it's only the "Keurig 2.0" version that requires the official k-cups. I don't think the Keurig Classic does (which they still sell). So it depends on what model they're sending you.

Unplug from wall. Use a continuity tester and check for continuity between all prongs on the coffee makers electrical plug. If there is any continuity between any prongs there is a defective electronic part inside. Your best bet is to toss the coffee maker out and by a new one.

Well, House0399, you're a three years late to the conversation and still wrong. You would expect there to be continuity between hot and neutral. Even turned off the thing has a DC path.

Certainly, way more than the GFCI leakage 6ma level will flow.

Looking at the schematics (which I had not bothered with before, I note that there is a couple of tiny capacitors from hot and neutral to ground (presumably this is some sort of RFI suppression). It's probably likely that one of these failed and was allowing enough AC to cross to trip the GFCI.