Kohler C3-520 Homeowner's Manual page 13

7. Clean the Nozzle
Nozzle pojected position
NOTE: The Nozzle can only be extended for cleaning when the seat is not
activated or occupied.
Open the cover and seat.
Press and hold the POSITION button for over 2 seconds, clean the bidet
wand with a soft bristle brush until the bidet wand fully extend.
After having the bidet wand cleaned, press STOP button, the bidet wand will
retract. Otherwise, the bidet wand will automatically retract afterwards.
Kohler Co. 13 1350325-KR01-A