Overflows the filter area and runs all over carafe & warmer plate

You may have the wrong size carafe. Try sitting something under the carafe; something that wont burn on the hotplate. Maybe thick enough to give a 1/8 inch lift or so. If this fixes the problem, you are using the wrong carafe. Try using a wet washcloth. Fold a couple times. Wetting it is just to avoid damage from the hot plate.

My coffee pot was leaking over the carafe and onto the warmer. I found that this issue was caused by the carafe lid. The lid was not allowing coffee to flow into the pot fast enough. I removed the inner mechanism from the carafe lid (it pops off really easily) and just sit the lid on top of the pot while brewing, and no more leaks! After brewing, I put the mechanism back onto the lid and twist lid onto the pot.

Hi, W/D here.
To get your Bunn working again, place a filter into the basket, fill the reservoir, and allow it to begin dispensing into the carafe. This will take several pots of water to get it filled and overflowing (dispensing). Plug it in, and let the reservoir heat up. It's not necessary at this point to have the heating plate turned on, but you can do so if desired to check that it is working, then turn it back off. Once you hear the reservoir heating up, pour in 8 ounces of white vinegar, and let the machine dispense into the carafe. Place an additional 8 ounces of white vinegar into the carafe, and pour back into the reservoir. Let the water heat up again, and let the vinegar solution sit in the reservoir for about 30 minutes. Top off the carafe with cool water and allow the carafe to cool with the warming plate turned off. After the 30 minutes, pour the contents of the carafe back into the reservoir, and it will dispense again. The water in the reservoir will heat up again. Check the coffee filter for residue. If you see a lot of grainy material, change the filter, and repeat the cycle until the filter comes out clean. Save your old filters as you go. Lay them out in order on paper towels, and you'll be able to mark your progress. When the filters clear up, discontinue recycling the vinegar solution and, instead, fill the reservoir with fresh water. The sediment has by now been freed up (de-scaled) and will continue to come off in smaller and smaller quantities. Each time you place fresh water in the machine, the dispensed liquid will smell less and less like vinegar. When no vinegar odor can be detected, you are finished.
Best regards, --W/D--

If water is leaking from the very bottom of the machine, your unit is broke and you need to call Cuisinart. If it is just overflowing the caraffe/basket:
The two most common reasons for overflow or underflow have to do with the carafe lid and the filter basket - they key to smooth flow with this coffee maker is making sure the filter basket and carafe lid are making the proper contact with each other so that the center knob on the carafe lid pushes slightly up on the filter basket spring. Make sure the carafe lid is completely closed. Make sure the filter basket is pushed all the way down. Make sure you are not using the gold tone filter and a paper filter at the same time. For some reason, I get better results when the handle of the carafe is resting against the right side wall. If everything is in place, I would suspect a problem with either the filter basket being clogged or some problem with the carafe lid - call Cuisinart as they should be able to order these parts for you.

The two most common reasons for overflow or underflow have to do with the carafe lid and the filter basket - they key to smooth flow with this coffee maker is making sure the filter basket and carafe lid are making the proper contact with each other so that the center knob on the carafe lid pushes slightly up on the filter basket spring. Make sure the carafe lid is completely closed. Make sure the filter basket is pushed all the way down. Make sure you are not using the gold tone filter and a paper filter at the same time. For some reason, I get better results when the handle of the carafe is resting against the right side wall. If everything is in place, I would suspect a problem with either the filter basket being clogged or some problem with the carafe lid - call Cuisinart as they should be able to order these parts for you.

Your coffee maker likely has the option where you can remove the carafe while it is brewing so that you can serve yourself in the middle of the brew. When you pull out the carafe in the middle of the brew, a small lever closes off the drip at the end of the basket (to keep the coffee from flowing onto the empty space where the carafe was on onto the burner).

Then when you replace the carafe, the lip of the carafe pushes against that lever and re-opens the valve so that the brew can now drip into the replaced carafe. Simple.

In your case, it appears that when you place the carafe onto the burner plate, it is not engaging that lever and opening up the valve; hence the valve stays closed and the brew fills over the basket and makes a mess, right?

So do this, pull out the carafe and look up where the pointed end of the basket drips into the carafe. You should see a lever, or plate that the carafe top lip hits when the carafe is placed into the burner plate. Once you find that lever, or plate, give it a push (like the carafe would) and see if it moves. if it does not, then that's your problem. It is stuck closed and won't allow the brew to exit the basket into the carafe. Clean it thoroughly if it is stuck and then see if works.

My Krups was not working after I accidentally forgot to place the black plastic lid on the coffee carafe BEFORE starting to brew a new batch of coffee. The coffee will not drip into the carafe without the lid
in place. Because the lid is hidden when placed in the coffee maker, it's easy to forget! The coffee all backed up in the filter area and overflowed. The display got wet. Not good.....

If your buttons and or display is not working ( mine got wet with coffee) simply flip the coffee maker over. Unscrew the bottom. expose the display circuit board carefully, DRY it with a HAIR DRYER and put the unit back together! Presto! Mine is working again.

If you need a new circuit board, you can get one for $35 from Appliances.com I found. They also have the Duo filter and extra parts cheaper than the Krups website.

The grind on your coffee is too fine, and if not there is too much coffee in the basket, hence the overflow.

I also bought the thermal carafe; before I could hack the warming plate, my wife set the "Auto Off" feature to 1 minute, which shuts off the carafe heater. The settings are preserved unless you lose power for an extended period.

The warmer does still warm through the brewing cycle but it doesn't overheat the carafe (IMO.) Hope this helps.

doesnt matter what filters we use this coffee maker is dumping coffee and grounds everywhere