There may be debris caught between the wand and the hose. To check for debris:

1. Shut off water supply under the sink.
2. Unscrew the wand from the hose.
   
3. Tap the screen in the wand to remove debris.
   
   Note: Do not disassemble the wand.
    
4. Screw the wand back on the hose.

Also, the face of the pull-out wand incorporates Touch-Clean® nozzles. To ensure proper spraying, wipe the face of the wand to loosen and break away residue and mineral deposits from the nozzles.