Won't brew
I had the same problem. If the above solutions don't work, I have a solution that takes a little courage and a few tools. Don't be scared. it is much easier than it seems. Promise. My explanation is very thorough and a lot of it is common sense and things you will figure out as you go. It took me about an hour, but a lot of that was figuring out what was wrong and I took the thing apart more than you need to, so it should only take fifteen minutes or so.
Good luck.
You need:
-A small phillips head screwdriver (very small)
-A set of Torx wrenches (look like screwdrivers, but have a star shaped head) (Maybe. You may not need these. See below.)
-Pipe cleaners
-Small zip tie
There is a valve just above where the big needle punctures the K-Cup. You can't see it without taking off the big, black plastic part that runs across the top. Look underneath the black thing where the big needle is; you should be able to see two small silver screws on the outer periphery away from the needle. Use the screwdriver to remove them.
Then use the Torx wrenches and remove the big sliver handle. This step may not be necessary, but I did it. If you don't have the Torx wrenches, see if it will work without take off the metal part.
Next, with the metal part on or off, remove the black piece. It should lift off easily. It hooks in near the back, so you may need to lift the front and slide the black part back a little to get it to life off.
Once that is off, you will see the hose is connected to the clear valve that is on top of the big needle. There is a spring inside the valve that forces a dome-shaped plastic piece upward to keep the water from continuing to flow/drip after the brew is done. This is the culprit. That valve gets stuck.
Cut off the ziptie that holds hose onto the valve and pull the hose off. A small flathead screwdriver may help to pry it off if need be.
It is awkward, but lean over and blow into the valve. If air does not pass through to the bottom through the big needle, you know this i the problem.
Take the pipe clear, bend the end a little bit. Stick the pipe cleaner into the valve with the bend part facing down. This will allow the pipe cleaner to bend once you force the pipe cleaner in. The end of the pipe clear will start to pile up in the bottom on top of the plastic dome. This is the goal. Get as much as you can in there, then pull it out. Try blowing into the valve again. It should let air pass through now. If so, success! If not, try again w/ the pipe cleaner.
Put the hose back on and wrap the ziptie around the hose to keep it on the valve securely. Pull it tight and cut off the excess.
To reassemle, make sure the hose is properly situated, put the black part on, making sure the two plastic hooks find their slots. When the black part is on, you should be able to pull forward on it and have it not move.
To put the screws back in, before you put the black part all the way on, feed them through the holes in the bottom where you pulled them out and hold them there w/ your fingers. It is a pain to try to get them in if the black part is already on all the way. Hold them with your fingers and push the black part down in front the was it was when you started this whole mess. Move one finger that is holding the screws enough to get the screwdriver on it. Screw it in half way. Move your other finger enough to get the screwdriver on and screw it in all the way. Then tighten the other screw.
If you took off the metal handle, put it back on w/ the Torx wrenches. Voila. Try running a brew w/o using a K-Cup and see how it works. It worked for me.
