Question about DeLonghi DCM485 Coffee Maker

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No power to display

You mentioned an inline fuse link on the DCM485- where is this? I have it apart, and have looked all over for a fuse- can you help?

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  • akhenryh Jun 19, 2008

    I have power to the coffee maker, but it won't turn on.

  • jcrump1 Jan 02, 2009

    I opened up the coffee maker and put my ohm meter on the diode located at D9 and it showed that there is conductivity through that diode. Does that mean anything? or should it still be replaced?

  • Anonymous Jan 17, 2009

    No power to the coffee maker



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This response is for folks having issue were the unit is dead no power to display. i have the same unit and it passed on this week.
i took it apart and found the ckt board and the zener diode at location d9 was burnt so was the board.
i replaced that diode with 1 from radio shack it was a zener diode 12 volt. cost 1.39 for 2 now its brewing again.

Posted on Sep 05, 2008

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It is kinda hidden and is hard to find. You will need to a soldering gun to replace it. The fuse is down by the element and has a heat resistant sheath over it. It does not look like an auto fuse. Good luck. Mark.

Posted on May 13, 2008


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the fuse is inline.follow the wire back from the heating element. the fuse has a heat resistant sheath over it,and it will be right next to the element. It doesnt look like an auto fuse. It has wires on both ends. It will silver in color. It also is soldered to the wire that runs to the element. I picked this one up at Radio Shack. I hope this helps you. Good luck. Mark.

May 09, 2008 | DeLonghi DCM485 Coffee Maker

2 Answers

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bring white vinegar to a boil and pour it into the perforated top, the water reservoir and the link between the water reservoir and the brew basket. let sit a few minutes, pour it out and do it again.
put the water reservoir back in, put water and vinegar solution ( half and half) in. Try to start it again. Mine did this last year and this fixed it right away. Try to clean the coffee maker using the vinegar solution once a month to avoid this problem.

Sep 13, 2007 | DeLonghi DCM485 Coffee Maker

3 Answers

Delonghi dcm 485 power on but will not brew

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

Aug 19, 2007 | DeLonghi DCM485 Coffee Maker

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