Question about Krups Caffe Bistro 867 Espresso & Coffee Maker

1 Answer

Warming plate trips GFI.

After coffee is done as soon as the warming plate clicks on it trips the GFI plug and shut down the plug, hence cold coffee when I get up !!
I love my Krups 867 it has served me well since 1996 not 1 problem until now. Can I fix it or can it be repaired ??

Thanks, Richard

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  • 2 more comments 
  • Richard Barone May 09, 2009

    No the plug is not a grounded plug,it is only a 2 prong but it's pluged into a gfi outlet.

    I can take it apart so I will look inside to see if there is a leak and I will let you know if this works.

    Thanks, Richard

  • Richard Barone May 10, 2009

    I took the bottom off and nothing was wet all looked good.. I cleaned and wiped the inside down all looked good but when I plugged it in and brewed some water all was fine until the warming plate clicked on about 5 minutes later, then the clock flashed once and the it click off ???

  • Richard Barone May 11, 2009

    I'm a pretty handy guy,there's not a lot to this thing. When I took the bottom off I did'nt see any black spots or burnt marks I just don't know what to check? If you have a suggestion please share, if I don't think I can do it then I'll take it in somewhere. If nothing else I can disconect the warming plate.

    Thanks, Richard

  • Samuel Charles Spriggs May 11, 2010

    There is a short to ground in the warming plate circuit. Most likely just wet. If you can take it apart, dry it out (rag, hairdryer) and check for internal leaks which may be getting that area wet. It may just have been a one-time spill which caused it.

    The question is how is the coffee maker grounding.

    Does the power cord have a gounding plug (3-prong) on it?



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Well, it's still a short to ground. But sounds like it's not simple. Needs to go to the shop, unless you want to try your hand at it.


Posted on May 10, 2009

  • Samuel Charles Spriggs May 11, 2009

    You most likely wouldn't have any burn marks -- a GFI is so sensitive and quick, it doesn't allow time for anything to get hot enough to scorch.

    I'm just brainstorming here.

    Maybe there's corrosion on a circuit board which you could clean.

    Or maybe the thermostat and/or relay which controls the warming plate has burned contacts which causes enough arcing to trip the GFI -- these contacts are probably not visible, they'd be inside the devices.

    If you can access the contacts, sandpaper/emery board and electrical contact cleaner might do the job.

    all for now...



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