Robot moving sluggish, slow or not at all

Make sure that all 4 of part D13 are inserted correctly onto main module (see image below)

Wrong orientation will cause friction on the tread, resulting in sluggish slow movement.

***Note: If you need a replacement part you can order it online here, http://www.owirobot.com/pages/Parts-Order-Form.html or fill out the warranty form in the back of your manual and send it to: 

Email: info@owirobot.com

or

Fax: (310) 515-0927