Question about DeLonghi BCO120T Programmable Espresso / Coffee Maker
TYPICAL FAILURE OF THIS MACHINE = THERMAL FUSE MALFUNCTION. Consider that a low reading, anywhere from 0 to .5, indicates very little to no resistance. This means there's a continuity of current in the circuit. This is the reading you should get
WHERE ARE THE THERMAL FUSES: There are 2 thermal fuses under the coffe tray and 1 fuse under the espresso boiler. (YOU WILL HAVE TO REMOVE THE BOTTOM COVER OF THE MACHINE). What this fuse does is regulate the temperature of the heating element so that everything doesn't melt (yep, I tried to bypass the fuse and found out the hard way..testing...testing..). Anyway, replacement for these thermal fuses are sold at RADIO SHACK for about $2.00. (Yep, only $2.00) If you open the bottom cover of the coffee maker and you will see the 2 fuses, they look like resistors. they are covered in a plastic tube to prevent damage. Clip them off I used a small wrench(radio shack) to pry open the small clamps that hold them, replaced them, then reclamped the new fuse back on.
REPLACEMENT FUSES: The thermal fuses have the watts/Amps and temperature stamped on them. There is 1 part that I use and has been working well for over a year ( over a year, yes this machine can last a long time!!).
The part # is Labeled - Raido Shack 270-1321 Thermal Fuse 438°F (226°C) 250VAC 10A (For heating devices like coffee makers and hair dryers). The temperature may vary + - a few degrees° on the label, from what I have seen.
HOW TO TEST THERMAL FUSES: These fuses are not only used for temp control but they also close the curcuit. If the fuse blows then it is open and will not heat. I use my ohmeter (put 1 prong at each end of the fuse) and if it reads open it means that the thermal fuse is bad, it has blown, there is no current running through it. I believe a light meter can check for continuity also and are much cheaper. Test by putting the test leads at each end of the fuse (1 prong at each end).If the light turns on then you are good, getting continuity. If you cannot get no light then it is bad. You can test your light fuse with a simple wire, touch each end and the light should go on, cut the wire in the middle and no light!!easy.
fyi. If your coffee does not get hot enough the fuse may need to be replaced also.
HOW TO READ THE OHMETER.
Know that a reading of OL means "over limit." That means the resistance is off the charts, and you have a break in the circuit. If you got an OL reading for the plug wires, you'd know there was a broken wire that needs replacing. In this case, we got an OL reading because the light switch is in the "OFF" position.
Read more: How to Use an Ohmmeter ' eHow.com http://www.ehow.com/how_2282412_use-ohmmeter.html#ixzz0zwX1LcJD
Read more: How to Use an Ohmmeter ' eHow.com http://www.ehow.com/how_2282412_use-ohmmeter.html#ixzz0zwXjz6C0
Consider that a low reading, anywhere from 0 to .5, indicates very little to no resistance. This means there's a continuity of current in the circuit. This is the reading you should get
Posted on Sep 30, 2010
Super! Changing the thermal fuse worked. As suggested, I bought the fuse at my local Radio Shack for $1.95 each.
The fuses were a bit tricky to find. They are protected with a plastic tubular sheath & clamped to the tubes going in and out of the hot plate. Follow the instructions to the letter and you'll be right back to enjoying your coffee maker.
Thank you so much for this post. You saved me the price of a new Delonghi Combi...
Posted on Mar 13, 2014
Thanks. It worked my case as well. In my case, using ohm meter revealed only one fuse was blown. Bought a fuse at Radioshack ($1.99) and replaced. Since I could not pry open the small clamps that hold the fuse, I cut off the both edges of old fuse and connected the wires with **** connectors (6403036, $2.80) also bought at Radioshack by holding the wires down with pryer.
Posted on Aug 12, 2013
Yes take it back and get a new one.
Posted on Oct 03, 2009
Does not get power from the control panel? help
Posted on Dec 22, 2015
The base has a 6 star screw holding the base on. None of my tools will fit over the odd screw head. Where can I get the tool to unscrew them?
Posted on Oct 13, 2015
Wow! Thanks so much for this post. I had the same issue, ran to Radio Shack for the fuses, replaced them both on the coffee maker side, and it works now! Unbelievable that $4 just saved me over $100.
Posted on Dec 29, 2012
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