Filter basket falls out/pushed out of filter holder after expresso button is pushed for 1 or 2 cups.

Check the following:
1. Make sure that you are using the correct size coffee filter in the basket. Only one filter is needed to allow proper drainage.
2. Check the spring loaded button on the bottom of the coffee basket. Remove the basket, put some water in the basket, push the button up to make sure the water is released from the basket.
3. Put the basket back in place, insert the carafe and check to make sure that the top of the carafe cover pushes up the button on the basket to release brewing coffee.

If all these check out, then there is an internal leak and the unit need to be repaired or replaced.

There is a lever in the back of the carafe area that pivots and controls a spring loaged valve on the bottom of the removeable filter basket. This lever breaks easily. Pull the filter basket out and you can see the lever hanging down into the carafe "bay". (assuming it's not broken off entirely).

When you pull the pot out during brewing, the lever swings forward and allows the valve on the bottom of the filter basket to close. This shuts off the flow of coffee to avoid drips. The plastic lever is held in place underneath the valve by two round tab "ears". One of these ears can break off, causing the level to hang at an angle. This means the filter valve never completely opens, even if the pot is pushed in all the way. During brewing, the filter basket can't drain into the pot fast enough and overflows.

I fixed mine by going ahead and removing the damaged lever and then wedging the valve open. The spring loaded valve has a little drip "Spout" which hangs underneath the filter basket that directs the coffee into the pot. You can push in on the back of the drip spout and wedge something into the two slots at the back to hold the valve open. This let the coffee flow freely during brewing.

Coffee overflowing onto the counter is a common complaint found in response to many automatic drip coffee makers. The following are potential solutions that can be used to rule out "operator error" vs. a defect or malfunction:

1. Do not "pack" or otherwise overfill the cone/basket with grinds.
2. If self-grinding your coffee beans, ensure you are using the correct grind setting for an automatic drip coffee maker. (See instruction manual for coffee maker and/or grinder.)
3. Do not overfill tank with water. Use the marks on the side of the reservoir rather than those defined by another measuring method. This is because a "cup" in a coffee carafe is defined as 6 oz, not 8 oz, and in some cases as little as 5 oz as a cup. (See your owner's manual.)
4. Make certain the filter cone/basket clicks into place and that the carafe is centered and pushed all the way in.
5. Try a permanent filter rather than a paper filter or vice versa.
6. Only use the correct permanent or paper filter (see manual).
7. Verify that the Pause 'n Serve button isn't sticking. If it is activated too long the brew will escape over the top of the cone/basket. This may be more apt to happen if the alignment of the carafe and the basket is incorrect.
8. Clean your machine with vinegar or as instructed by your owner's manual at least three times per year, more if your water supply is hard (prone to leaving water rings). A properly cleaned machine is less likely to suffer a burned out heating element, to take too long to brew a pot of coffee, to produce "off" tasting coffee, or to clog and overrun the filter basket.
9. Ensure that the coffee machine is sitting level on the counter.

Put the handle to the basket, that holds the coffee grounds toward the front.  If it is not facing front it will pop open.

The Coffee Maker can be descaled using
a packaged descaling agent or vinegar.
Always mix the descaling solution using
cool water.
• When using a descaling agent, follow
the directions on the package for the
recommended amounts of descaling
agent and water to use.
• When using vinegar, fill the carafe with
a solution consisting of 1⁄2 vinegar and
1⁄2 water.
Descaling Steps:
1. Before descaling, always remove the
water filter (see “Installing the Ion-
Exchange Water Filter” on page 7) and
make sure the brew basket contains
no coffee or coffee filters.
2. Run the Coffee Maker through a
complete brewing cycle using a full
carafe of the descaling solution.
3. If the cleaning needed indicator lights
after the brewing cycle is complete,
repeat Step 2 using fresh descaling
solution. Keep repeating Step 2 until
the cleaning needed indicator no
longer lights after brewing.
4. Rinse the Coffee Maker by running
it through two brewing cycles using a
full carafe of fresh, cool water
each time.
5. Wash the brew basket in hot, soapy
water and rinse with hot water. This
part can also be washed in the upper
rack of the dishwasher.
6. Reinstall or replace the water filter.
Replace the filter every three months
under normal usage, or more often
with heavy use.

COFFEE PREPARATION PROCEDURES
1) Place filter into brew basket.
2) Put the proper amount of coffee into the filter.
3) Slide the brew basket into holder.
4) Place empty decanter on warmer located directly under the brew basket and turn corresponding warmer switch ON.
5) Pour decanter of fresh water through pour-in opening at top of brewer.
6) Hot water will be delivered through the sprayhead. This distributes the hot water evenly over the coffee bed within the brew basket. The coffee will drain from brew basket into the container below.
7) Red light indicates warmer is ON.
8) Before brewing next pot, remove brew basket from brew rails and dump filter into waste basket.

Please rate this a fixya

I have the same problem with the exact same coffee maker I have tried pushing the 1-4 cups button. That worked for a couple weeks, now it is back to only brewing half the water in reservoir whether I push the 1-4 button or not. It is very annoying.

I had to use some olive oil around the outside of the filter cup holder to get it to move all the way to the right. After the first couple of times I was able to get it on straight without any oil...

Be sure the red rubber gasket is in place and clean (ridge side in) and bottom water cup is screwed firmly on to avoid leaking.
HOW TO USE:
1) Fill the bottom water cup with cold water up to the inside lip.
2) Set funnel into bottom water cup
3) Fill coffee basket with expresso grind coffee and level off. (Do not tamp or pack). Make sure it's filled to the top.
4) Place filter onto coffee basket and set coffee basket into funnel
5) Place brewer over bottom water cup and screw firmly into place.
6) Place unit with lid in the center of a microwave oven set on high for 1-1/2 minutes. If boil over occurs, reduce the brew time in 10-second increments until no boil over occurs.
7) Grasp handle to remove unit from microwave when finished brewing.
8) Remove lid and check the level of espresso in the brewer cup. Standard brew is at least 2 oz. If you don't have this level brew, replace lid and microwave on high another 10 seconds. Wait 20-30 seconds for bubbling to stop.
CLEANING/ADDITIONAL BREWING:
1. Under cold running water, unscrew the bottom water cup. CAUTION: It is normal for some water to be left in the bottom water cup. Both the coffee basket and any water in the bottom water cup will be extremely hot! If you prefer, allow the unit to cool for at least 3 minutes before unscrewing it.
2) To brew additional espresso, rinse Funnel, coffee basket and filter, then repeat brewing steps 1-8 above.
3) Parts are top rack dishwasher-safe -- hand washing filter is recommended.

My Krups leaks like a sieve and I found parts (seals) available at  smallappliance.com