If the needle is open then there may be blockage in the internal piping or pump unit. Blockage could be calcium scale buildup or even algae.
I removed the bottom metal plate and unscrewed the inlet port. I then blew into the inlet port and held my finger over the over flow into the water reservoir. In a short the blockage let go and flooded the counter top! But now it works as it should! Good flow.... remember to do this with the Keurig unplugged