Question about Cuisinart DGB-300 Coffee Maker

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DGB-300 I have a DGB-300 (that has already been replaced once under warranty) and all of a sudden it does not fill the carafe.  The water stays in the chamber where i fill it up.  I have not changed filters, coffee brand, nor the grind.  The manual doesn't have any troubleshooting information.  The coffee grinds just fine.  Can you help?

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  • elbeebee May 11, 2010

    Ask Cuisinart. I have found them to be very helpful. Could it be clogged filter (= needs vinegar cleaning)?

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Definitely do the vinegar/water cleaning. It will almost undoubtedly resolve your issue.

Posted on Mar 20, 2009

  • Richard Simpson May 18, 2011

    I have the same problem, not long after smelling burnt electronics from somewhere, took the bottom cover off the unit and found a burned connector on a relay, ordered and replaced the relay (I can solder electronics) but still have the problem. I tested the water path for flow in both directions, and it seems normal, with reverse-flow restricted by a ball device in the fill tube. There is no calcification, and I use only filtered water to fill the unit. Self clean does nothing but glow the light, and pushing the Start/stop button ends the cycle as if it was finished, similar to the regular cycle acting as if it's filled the carafe before any water flows.

    My understanding of similar devices is that either a temperature sensor or current sensing technology determines when the reservoir has emptied, ending the brewing cycle and switching to keep warm mode. However the only temp sensor in the unit seems only to be used to sense the carafe temp, so whatever is sensing the end of water flow/supply is triggering far too early.

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