I put in 12 cups of water and only 4 cups come out with coffee what is wrong with this. It is only one month old

Because I own a espresso company,I believe I can help you. There is several things that can cause a coffee machine to over flow. 1, putting to much coffee in, where water can not drain through filter. 2. The grind of the coffee, if it is ground to fine, like ground for espresso, will not allow coffee to flow through filter , drip machine that are not under high pressure like espresso machines have to have ground more course. 3, wrong type of filters, not fine enough for water to flow, or made for high pump pressure machine such as espresso machine . 4, putting to much water in, is not an issue on a mr coffee, because even if you fill it to full cup line, it would have nothing to do with filter over flowing, besides the coffee grounds always absorb some of the water anyway. In conclusion, my positive professional diagnose is Grounds of coffee to course, and 4 scoops seem a bit to much for a filter of a mr coffee machine that holds only 12 cups. To test this is make a pot same way and use only two rounded scoops and see what happens, if does not over flow that solves that. But your saying I want it stronger, believe me I know. I too like my coffee strong and a flavorful . I have that solved too. Go to a good walk in espresso shop, like a star bucks, tell them you want some good strong blend and have it ( Ground for Drip) and then still only put two rounded scoops, it takes less do to the blend and kind of coffee. Please let me know if my advice worked, thanks mike. oh notice my screen name of mc1 bean, now you know, I know what I am talking about :)

Are you sure 8 cups of water is a lot to LOOSE it has to be somewhere i am used to loosing 1/2 cup in the grounds if i make 8 or more cups i have 2 of these coffe makers one in each house the only times i ever loose more is when the filter isnt properly seated and it flows around it and makes a major mess get your coffee maker into a good light and pour water into the filter(coffee maker off) with the carafe out fill it about 1/2 way no water should leak thru then slip the carafe into place the filter should empty if the water flowed when the carafe was out your filter basket and holder arent seated or the valve on the bottom of the holder is clogged and/or held open

Water level: Amount of coffee:

42 cups 2 1/2 cups
36 cups 2 cups
30 cups 1 3/4 cups
24 cups 1 1/2 cups
22 cups 1 1/2 cups
18 cups 1 1/4 cups
12 cups 1 cup

usually you would put one less scoop of coffee than water. so if you want 12 cups of coffee you put 12 cups of water and 11 tablespoons of coffee

Mine just started to do the exact same thing. So I decided to clean it using the "Clean" program and just water. I put the brewer through the cleaning program 3 times - each time it would brew water from 12 cups to 8 cups, I'd tap the brewer on the countertop, it would brew from 8 cups to 4 cups, tap it again, and it would brew the remaining cups. So, I called the Mr. Coffee help line (800-672-6333). The most-likely problem is that the hose is no longer attached in the water reservoir. The help line suggested that I take it in to a service center. I live in Urbana, IL and the closest service center is in Oak Lawn, IL - 2 hours away from me!!
Here is my solution:
1) Buy another coffee brewer.
or
2) Smash your current Mr. Coffee brewer into a million pieces (this relieves stress) and go buy another coffee brewer (probably stay away from Mr. Coffee products).
Hope this helps.
Frustrated in Urbana

Usually when that happens you need to clean it out w/ white vinegar and water because it's developed a blockage of some kind. I'd recommend 6 cups vinegar and 6 cups water, and brew it through like a normal brew cycle. If you haven't done this at all in the year that you've owned it then it probably won't work completely the first time. You might have to do it quite a few times, and I suggest doing it at least once a month from here to keep the problem from happening again. And remember to always use a fresh solutution each cycle, don't want anything you take out to go back in, you may not get any coffee then! :)

If you like, there's another way you can do it. Put in the solution of vingear and water, start to brew it, and just when you start seeing it drip into your pot, turn off the unit and let it sit for an hour. Soaking it or running it through several cycles can both help, it's up to you how you go about it.

Make sure that when you do the vinegar solution, you do at least 4 cups of white vinegar, and fill it up the rest of the way (max fill line) with water. The manual says to "fill to capacity with a mixture of 1/3 vinegar and 2/3 water," which lots of people misunderstand, and think it means "1/3 CUP vinegar and 2/3 CUP water," which is not the case. It means 1/3 of your 12 cups (and 1/3 times 12 is 4 cups) of vinegar, and 2/3 of your 12 cups (aka, fill it up the rest of the way) of water.

You might have to let it soak for an hour before you try to brew it--this lets the vinegar work at the calcium buildup a LOT better (kind of like soaking your pots and pans before you try to clean them), but it should definitely work for you. If not, call Cuisinart's tech support (1 800 726 0190) and they might be able to get you a replacement :)

I have this problem with a 4 cup model. 4 cups in, 2 cups out. I cleaned it twice with vinegar (with a filter in place). The first time didn't seem to help, but the second time I got about 2.5 cups out, along with a bunch of old grounds that I think had been sucked into the pump. Ran water through it twice, and now it gets to about 3 cups.

I think the problem is just that the pump is clogged with grounds. If vinegar makes yours worse my guess is that a big piece got dislodged and is now blocking the tube. More vinegar might help.

I had same problem after 4 months. very slow brew time, 10 cups of water poured in made about 6 cups of coffee. I used a packaged coffee pot cleaner powder and this fixed the problem (for now).