Over time or with certain customizations, the faders on the BCF-2000 may need to be recalibrated.
To recalibrate the faders on the Behringer BCF-2000:
Turn OFF the BCF-2000
Press and hold the LEARN button
While continuing to hold the LEARN button, turn ON the BCF-2000, then release the LEARN button
The BCF-2000 will go through a brief calibration routine, ensuring that the range of MIDI values sent from the faders corresponds with the actual physical range of motion of the faders.