Why is my coffee maker only brewing a partial cup?

Power the coffee maker off, then press and hold the 10 oz button for 5 seconds until water starts dispensing, then release and let the water purge before discarding the contents into the sink. The exit needle may also be clogged and should be cleaned using a straightened paper clip. If the issue persists after repeating the descale procedure twice, contact Customer Service. (Page 5)