How To Fix A Coffee Maker That Doesn't Heat
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- Опубликовано: 28 дек 2022
- Do you have a Cuisinart Coffee Maker that suddenly stopped brewing and no longer gets hot? Chances are that the thermal fuses internal to the coffee maker are bad. This coffee maker also had an ErH fault on the display when it failed. In this video I go through how to identify the problem and how to fix it for less than $10
The coffee pot in this video is a Cuisinart CBC 7200PC purchased at Costco in 2021
If you find this video useful, please hit that Like button and make sure to click the Subscribe button and bell so you don't miss any new content. Thanks for watching!
Parts and tools used in this video:
Wire Crimpers
Phillips Screwdriver
Wire Strippers
Non-Insulated Butt Splice connectors
MultiMeter
Thermal fuses: (make sure you buy the correct rating for your coffee maker)
www.amazon.com/dp/B07Y63LY8K?...
Follow me on Instagram!: @the_guyofalltrades
Disclaimer:
Guy of All Trades is not responsible for any damages to person or property when performing work as depicted in this video.
#coffee #cuisinart #diy 
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Great video. You spoke slowly and pointed out every different part that you were diagnosing. The best thing was you did not overwhelm the viewer and you offered solutions as well as caveats. Great job 😊😊
Thank you!
Excellent explanation, including “gotchas” like not re-soldering connections, use crimp connections instead due to heat. Well done. On point. Thanks!
Very welcome
A really excellent job of recording sharp clear video closeups and the narration was no nonsense, to the point and not missing anything. I can afford a new coffee maker but it bugs me how much stuff can be fixed easily and given another kick at the can, as I say. So having watched this, it looks like my Oster (over 10 years old) has two thermal fuses in series from the temp sensor instead of one per lead to the element. Metered in circuit, one is open and one is conducting. Thank you.
Thanks and welcome. This one is still going strong a year later
Beauty! Thanks my friend!
Very welcome
underneath that is identical to a cheap mr. coffee brewer, nice video, easy fix
Thanks for watching!
Thanks for the video I fixed my Smeg coffee machine. It only had 1 thermal fuse.
Awesome to hear!
Just saved me $200.00 THX!!!
Welcome
Excellent video. I like that you explained the basics of using the multi-meter for viewers not familiar with them. One suggestion is to not pour water into the reservoir when the machine is hot. With no water in the reservoir the heater heats up very fast and when the cold water hits the hot heater it turns to steam and could possibly damage the heater.
Thanks!
This is exactly the mistake I made, poured a cup and added water ... instant burnt wire smell .. Glad I found this video ... just saved me $200.00.
P.S. When you do go to do the repair, make sure you have dumped the water out of the reservoir before you flip it over, otherwise you will look like a wet idiot ... trust me I know.
I couldn't go 2 days without a cup of coffee, so I just ran up to Wal-Mart and bought a new machine. I'm definitely sorry, though, that I missed out on the satisfaction of fixing it myself. Great video.
I feel ya on that lol. Thanks for watching!
I'm with you man, I'd love to fix mine but I gotta have some coffee now!! 😂
@@ronaldolamont I feel ya lol
Thats happens when u cant boil water, can boil water and poor over but maybe not if high schooler
Ahhh! I figured this might be my problem. I glad I watched this video tutorial. I just got done fixing my crockpot express with the same issue. I had to order special split tip screw drivers to remove my cover just came in today for my coffee pot. Hopefully this is my problem, now I’ll need to order another thermal fuse probably not the same heat range as my express crockpot. It would be nice if it is…...
Thanks for watching
GREAT VIDEO!!! I hope the Hubby can watch it and FIX my 200$$$ ++ Burr grinder Cuisinart coffee maker. Only had it for 6 yrs!! LOVE it but 6 yrs SUCKS. Gotta drag out the Mr. Coffee that STILL works after 100 yrs and make it the old fashioned way--with burr ground coffee beans from the CUISINART!!! that's all that works on it and the stupid BEEPER
Thanks for the great video .
Thank you and thanks for watching!
Ordered the fuses. Wish me luck.
Good luck! Mine is still going strong a year + later
Impressive
Thanks
Hello. I have pretty much the same Cuisinart coffee maker, with the same problem. And sure enough, the thermal fuses are open-circuit. BOTH of them. As the base area of the coffee maker over-heats, I would not expect both fuses to trip at _exactly_ the same time. One of them, with the lowest temperature trip point, would open up first. That should interrupt current to the heater, which should then stop heating, and I would think would prevent the second fuse from tripping. Of course, there is probably some "thermal inertia" in the system, so that heating of the second fuse continues for a short time after current to the heater is interrupted. Maybe long enough to trip/melt the second fuse? If I was keen enough, I guess I could do some experiments with some temperature probes...
Anyway, I am fortunate to have a "parts picker" coffee make, with two intact thermal fuses of the same rating, so I will use those to repair my Cuisinart.
Both fuses had the same exact temp rating on this coffee pot. The issue definitely was the pot was left on empty with nothing in the carafe. You would think having a thermistor that it could use that to shut the heater down before it hit the temp rating of the fuses.
@@theguyofalltrades There is a thermistor (or similar temperature sensor). In your video, it is the small device with the two thin grey wires attached to it, which is clamped to the heater. That temp sensor is for the keep-warm function. After brewing is complete, the controller measures the temperature of the heater/plate/carafe, and if it cools below some threshold, the heater is turned on for a short time, until measured temperature goes above an upper threshold. For my machine, when in keep-warm mode with about 2 mugs of water in the carafe, the heater gets turned on for about 10-12 seconds, and then goes off for about 3 minutes, and the cycle repeats.
The thermal fuses (also called thermal cut-offs) are basically fail-safe devices, which will protect the appliance (and your kitchen/office) from drastically over-heating or fire. That would happen if for some reason the normal control loop using the thermistor had failed for some reason, and just kept the heater on. Or maybe the relay that switches the heater has "stuck on". The system design _should_ be such that you can safely remove the carafe for any number of minutes, and the thermistor loop should still prevent over-heating. It should not be "normal" for the appliance to be "bricked" by a tripped thermal cut-off, just because you removed the carafe for a minute to pour coffee for your guests.
By the way, the two thermal cut-offs may have the same 240C trip _spec_, but it's hard to imagine that they are so exactly similar to trip within a few milliseconds of each other. If one trips at 239.9C and the other trips at 240.1C, then the 239.9C part should go open-circuit first, while the 240.1C part is still conducting.
WOW!! THANK YOU! I have an old Cuisinart, with the built in grinder, and timer. My wife loves the smell of fresh ground coffee in the morning and the sound of the grinding beans wakes me up.
It looked almost identical from the bottom. I tested and got almost identical reading for the heater element.
One more problem I have is the 2 orange rubber tubes were rotted right through, (which explains the recent water appearing under the machine), so I cut the longer tube back & used it where the short tube was. All working except I'm not sure if there's a special type of tubing & if so, where would I get this?
Thanks again for the excellent video!!
Welcome! You could probably find the tuning on Amazon I bet
Fix my Black & Decker coffee pot good job buddy natural Space Saver model bet you can't get anymore
Awesome!
enjoyed the video. I have a defective switch on my coffee maker. it is also a 3 prong rocker switch. can you please tell me which wires to connect to bypass the switch. we will be operating the coffee maker off of a switched plug until I can get a new rocker switch. ty
Thanks for watching. Feel free to email me a pic of the switch if you want. Theguyofalltrades@gmail.com
Really helpful video, thanks.With this I've checked the fuses on mine and they seem sound. As a next step I wanted to try and replace the heating element suspecting this may be the cause of the problem. Has anyone managed to source a replacement or suitable alternative online (UK)? Thanks
Welcome. It’s been hard to find parts for most coffee makers as they want you to just toss it and buy a new one
Those thermal cut-outs very commonly fail open with age having never been subjected to an overheat condition.
Wife left the pot on with no coffee in it. That’s why these went
I’m guessing, there’s a fuse for the brew and another one for the hot plate.
My 14 cup model has 216 degrees C fuses. Unfortunately, both my fuses are still 0.0 ohms (continuity setting 'beeps'). My hot plate is 14 ohms. My maker brews OK, but when the brew cycle is done, it just goes off, like it should do 2 hours later when it times out. Probably the circuit board then. I'm going to see if there's some way to reset it and try again.
Sounds like a logic issue with the board. Is there a thermistor too? That is what senses hot plate temp. I’d maybe check that
My Crux machine had 2 thermal fuses wired in series, both 15A and both 240C. One was blown and the other was fine. Couldn't find a 15A so I bought a 10A, should work as it is only a 1Kw pot.
8.3amps. Supposed to be 125% overrated which is 10.37. Should be good I think but it’s life be shortened due to being so close.
@@theguyofalltrades The ones you linked to are 10A and I didn't ever find any rated higher Amps than 10...not that it is your responsibility. I think the temperature rating is the most important spec on these.
Agreed
Mr Coffee Model BVMC EHX23 - the thermostat is brand RU (backwards R) part number KSD 303 125v 12A 155 degrees centigrade.. Looks like not all the Mr Coffees use the same temp rating thermostat. And there are dozens of companies making those thermostats.
This was a cuisinart
That was helpful, thanks. My fuses are both blown. What's bothering me is that if the coffee maker is designed properly, the fuses should not blow unless something else has failed and it had "run away" (i.e. like the temp sensor, or a stuck relay, etc). If replacing the fuses fixes it, then were the original fuses underrated or defective? Or are the fuses going to immediately blow again, because the temp sensor is still bad? You get my point. That said, it's hard it resist the satisfaction of fixing something, so I guess I'll spend $10 and replace them and see what happens.
There is a temp sensor to regulate the temp but I think if you leave the carafe empty it will take out the fuses. You would think there would be a fail safe. I’m still searching for an official schematic to be sure but I haven’t had an issue since I replaced them.
@@theguyofalltrades I got some fuses, crimped them in, and so far it's made 3 pots of (coffee-less) coffee. Looks good! Before buying, I looked up the specs for the failed fuses and they said they can have a reduced performance if they were improperly heat-sinked when they were welded in place. Maybe the cause of these failures is rooted in the manufacturing process. Thanks again for the video.
Happy to hear! Thanks again for watching. Glad I could’ve helped.
Thermal fuses, like just about all electronics, degrade with age, and more so when hot. So repeated heat cycles will gradually degrade the thermal fuse until it fails. I've replaced thermal fuses on coffee pots several times, and more recently, on a space heater. I found my 'spares' in the garage. My space heater thermal was 128 degrees C, and the one for my old Black and Decker coffee pot was 139 degrees C. I'm a bit surprised how high these fuses go since water has to boil but not a lot more. It isn't like you want your carafe to have a hot plate under it that is 'only' 200 degrees C -- it would boil at 100 degrees C! It would be useful if somebody could read actual markings on theirs.
I'm looking to replace the fuses in my Mr. Coffee 4 cup machine and am having a hard time finding information on what the proper fuse to use is. I've seen some repairs that use the 216 degree fuse and some, such as this repair, that use the 240 degree fuse. The ones that are currently in the machine are unmarked. Is there a discernable difference between the two?? Should I just go with the the 240? Thanks for all the helpful information.
Honestly the 240 is probably fine.
@@theguyofalltrades Perfect. I will give the 240 a try. Thank you so much!
Welcome. Thanks for watching the video!
To add,take the the hoses off and clean out the tube. Get the scale off. The calcium etc build up in the tube restricting the flow blowing out the fuse sometimes other then a old fuse. Plus it makes your coffee taste better. :)
We use reverse osmosis water in ours so no scale really but good recommendation
I was curious if the heating element is stainless or aluminum.
@@CraigSiderioit’s a nickel element encapsulated in either steel or incoloy similar to an older electric stove element. The aluminum is a cover over the element and water tube
@@theguyofalltrades Thanks. Just bought the new Cuisinart model DCC3400p1. BTW the newest Mr Coffee machine thermal maker is great but the downfall is it has a all aluminum heating element.
@@theguyofalltrades I received confirmation today from Conair who owns Cusinart that the element is food grade aluminum. Regardless hard pass on cusinart. All Aluminum is tied to Alzheimer’s.
What if everything you mention was done with the pot still doesn't heat up or start the water pumping into the pot? What else can I do?
Did you do a resistance check on the heating element? If that’s good I would verify power is getting to the heater. If not there’s probably a bad relay on the control board
I have a coffee machine with a k-cup button and a brew button. The brew button works and heats up, but the k-cup button, when pressed, beeps and than shuts off. What could cause that?
Beeps immediately? I know the k cup needles on those ten to get clogged. You can clean out with toothpick if that’s the case
@@theguyofalltrades Thanks for the reply. I did try cleaning out everything, but it didn't help, unfortunately. The brew button brings hot water out of the same needle without issue, but for some reason the k-cup button shuts the machine off. It also makes a heating noise like it's trying to heat up the water *after* it shuts off.
Do the butt plugs have to be un-insulated or are insulated ok?
I used uninsulated butt splices just because it gets pretty hot near the heater
What gauge? Pretty small wire, 16?
Looked be 16-18 for the fuse. The heater was about 12.
Why is everyone so mad at the manufacturer? This fuse saved your pot from melting or burning your house. My grandpa had a cheap single coffee cup heater that melted one day, wish he had these fuses in that thing... fail safe.
Who’s mad? It’s definitely there for a purpose
Some of these comments lol
Looking for the link to heat fuses
I cant find the info for fuses
In description
They are all just about the same rating
Link to fuses please 🙏
It’s down in the description 👍🏻
The Cuisinart DCC-1200C similar model to that one comes with anti-tamper torxs screws!!! What about the right to repair! Those companies should be boycotted!
Easy enough to get those bits. All the big box stores sell them. I feel ya though
Can I just use tin foil to fuse?😂
I mean you can do anything you want lol you just might burn your house down
@@theguyofalltrades good point LOL
If you could stop saying right....after your sentences...that would be great... lots of people doing this now...very annoying.... thanks
🤣 sorry I’ll change the way I talk just for you lmao
lmao u do the same thing with “…”
@@cookiemonster2577can’t please everyone lol
But you can't hear "...."@@cookiemonster2577
RIght?
Just buy a new one
$2 fuse versus $70 coffee pot nah. Still working perfectly a year later
Some people have more money than brains.
Why
Repair & keep yet another thing out of the landfill.
lol. Just buy a new one.
lol nevah! $70 new or $3 fuse. Still running perfectly after the repair and it’s used twice a day
@rwatson3726 Learn how to fix stuff. It may save your life some day. And, you save some stuff from going into the land fills.