Why isn't my PowerTap computer showing watts? June 07, 2021 13:35 Ensure the hub is awake by spinning the rear wheel. Perform a "find"� on the on the Joule/Joule GPS by pressing and holding the "+" and "-" buttons for 3 seconds. Spin the wheel to wake up the PowerTap. Zero the torque (see our video instructions for Joule GPS and Joule). Related articles Why won't my Joule recognize my G3 hub? Comments 0 comments Please sign in to leave a comment.