If you tried to clean it (descale) and did proper and still does not work, this is most likely a pump vapor lock kind of issue. This can be cause from a small blockage to cause the vapor lock for the pump to work to pump the water, or just a vapor lock to get that water to pump; MOST THE TIME IT IS A PRIMING ISSUE. kind of like bleeding the breaks on a car. Read below and follow steps.
hold your finger over the white tube in the top of the reservoir to place more
pressure on the water to flow through the needle and expel the debris from the tubing
Take a can of compressed air like you would use to clean your computer and blow air through the tube(s) in
the reservoir and also the needle(s) to clear dirt debris and water
from the machine. This process may make a mess so be sure to have the
machine is a place where the mess can be cleaned up easily. Some have
even used a large tire type air compressor out of desperation, and
report that it does work. I would use great care with this method and
shoot the air in very short bursts.
Often the pump gets air in it and does not prime correctly.
It will then only pump a little water. To fix this you may need to get
rough with the machine. Slamming the reservoir onto the machine will
sometimes work, The shake rattle and roll method also will have the
desired affect sometimes. Some have turn the machine upside down over
the sink, have slapped the sides of the machine, or even shake the
machine to get the air out of the lines.
Once you do get the pump to
prime properly, you can keep the pump from getting more air by making
sure to fill the reservoir before it gets empty by using a pitcher to
fill the tank instead of removing it and filling it.
With some Krups, the bottom needle does not pierce the bottom of the cup
if you simply place the Krups into the holder and then close the top.
Extra effort may be needed to make sure that the K-cup gets seated
properly so that the water can flow through the Krups easily. If you
have water still in the K-cup when you remove it after brewing, you are
having this problem.Bottom Line I believe most your problem is going to making sure tubes are clean and priming it, even have have to get a little rough and shake machine to get the pump working as air lock gets out. Let me know if this worked for you. Takes some patience, but should get to working with some time Thank you, Mike from fixya