Question about DeLonghi Caffe Nabucco BCO70 Espresso/Coffee Maker

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Delonghi coffe maker leaks water from bottom

How can I fix this issue. Water leaking from bottom of machine.

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  • Anonymous Mar 25, 2009

    Same problem. Water is clear. Can't find a leak anywhere. DiLonghi replaced the water fill basket as I thought it was the problem; but that did not solve the puddle of water that accumulates whenever coffee is made.

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  • 37 Answers

The problem is that the heated water is leaking out of the drip chamber. This is caused by the fact that they were to cheap to use stainless steel screws that hold the chamber top to the bottom. The screws have rusted and the hot water can escape the drip area and runs down next to a plastic tube that delivers the hot water to the top of the coffee maker from the heating element. To repair you have to remove two screws that are on the underside of the hot water drip area above the coffee filter. Then there are 3 tabs that have to be released and separate the cover that has the strength control from its base. When you pop off this cover, you will see the remains of 4 screws that are badly rusted. I used a small ez-out and drill to remove the remains. Be very careful to not drill the pilot hole through the top. I got lucky and was able to remove the screws and replaced them with stainless steel. An alternate method would be to use a food grade 100% silicon adhesive and glue the to back together. This method may leak in the future, so try to get the old screws out first.


I would recommend a MR coffee $30 to $50 models, on sale, for coffee before I would ever buy this European designed junk. I took this thing apart and just shook my head and said that you can tell things that aren

Posted on Mar 14, 2011

  • ghahnBV Jul 09, 2012

    I removed the two screws under the lid and above the pot and gently pryed the cover off. I saw two rusted screws that appear to only hold the unit together. The four screws that held the chamber together were already stainless steel. Perhaps I have later model? Anyways, I tightened ALL of the screws - one of which was the rusted one that I don't think does anything to hold back pressurized water. I am hoping that thightening all of the screws (about a quarter turn) solves my 'water-leaking-out-the-bottom' problem. Thanks to you Richardkl for the advice!

  • Gloria West May 19, 2013

    Mine is leaking cold, clear water. Do you think this rusted screw issue would cause this?

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