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Question about DeLonghi DCM485 Coffee Maker

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Delonghi dcm 485 power on but will not brew

I have had my Delonghi dcm485 for about 8 months and it now will not brew. In the manual it shows that when all the bars are showing it needs to be reset, thats not the problem. I've tried resetting anyway and that doesn't work.

Posted by rcuozz on

  • 5 more comments 
  • Anonymous Nov 05, 2007

    Delonghi DCM485 coffe maker also about 8 months old and suddenly no longer brewing coffee. Cleaned everything and no help in manual. Any ideas?

  • Anonymous Feb 28, 2008

    will power on but not brew and yes, it is clean

  • potr Mar 15, 2008

    My delonghi dcm485 will just stopped working even though the power is on. I can not clean it as suggested because no water is being sucked from the reserve tank to either clean or brew. I have also tried reseting to no avail.

  • chuck203 Jul 10, 2008

    Mine is about 18 months old (out of warranty). 2 days ago it worked fine. Yesterday the light went on but no brewing!

  • rmoncks Sep 24, 2008

    have power to the coffee pot but the coffee will not brew, no water being pumped out of the reservoir

  • Anonymous Oct 04, 2008

    My pot will turn on but it will not brew, nothing happens. Of course my warranty has run out. Should I just throw the coffee pot out.

  • jhbmcunn Mar 21, 2009

    Ok, my Delonghi DCM485 stopped. It won't empty the resevoiur, it won't start the brew, just nothing. I've taken it apart, the fuse (I'm guessing this is the thermal fuse (circular ceramic shape attached to the heating unit) showed 0 ohms across, so I am assuming that it is good. My heating element shows about 16 ohms across it, so I'm guessing here that some resistance is better than nothing. My pathway from the input and the out put of the element is clear. There isn't a pump unit in mine just an output to the top of the brewer. So my question is, what should be showing across the element? More resisitance? My guess at this point is, since this thing doesn't use a pump unit, it relies on heat to cause the water to rise to the top of the brewing unit, and without the heat, no brew. Any insights would be helpful, as I never made it through Delonghi service school..


3 Answers


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THANKS "Guest" - you just saved me $100 !
I had already bought a new coffee maker (Krups) when I came across your post.  The thermal fuses (there are two of them) are indeed hidden - they are right underneath the metal braces/clamps that push them against the heating element that they are meant to monitor.  If you take off these clamps and pull back the white insulation you can easily replace the fuse(s).  What you need is:
- volt meter
- needle-nose pliers
- Radio Shack thermal fuse 228C (catalog #270-1321) - these are rated at the same temperature and look fairly identical.  They cost $1.69 at your local Radio Shack
You do NOT need a soldering iron.  So: - take off the bottom of the coffee maker - take off the clamp(s) and pull back insulation. - put your volt meter on either side of the fuse and check for continuity.  In my case, one had no resistance (good) and the other had no connection (bad). - take your needle nose and pry open the clips on the end of the wires that connect to the bad fuse ... put in the new fuse (make sure the polarity matches ... just in case) and scrunch the clips together again - replace everything
In order to make this easy to do, I disconnected the water intake/outtake and also removed the two screws holding the whole heating assembly.  Made it a lot easier

Posted on Apr 22, 2009

  • NWVinTexas Jan 24, 2011

    I toasted this morning to you Dorito88 : ) You saved me a ton of money

  • fjd3 May 20, 2011

    Dorito88 -

    It works - it makes coffee - you ROCK.
    I just went in and replaced both fuses - don't own a volt meter - never done anything like this before.
    BANG - fixed.

    Thanking you.



My dcm485 turns on but won't brew coffee and it is not that it needs cleaning. On mine, this component has failed:

Bypassing this part allows you to make coffee - but its likely that the pot will overheat, melt and catch fire without it (unless you stand there and manually turn off the pot as soon as its finished).

Also, this may have failed because another part failed.

Posted on Mar 18, 2008


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Have you cleaned the unit?
Pour hot white vinegar into the water reservoir and lid. Rinse out and try to run again.

Posted on Feb 09, 2008

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