It seems that the product is defective. How can I return it? Follow Sandra Portmann July 24, 2018 09:25 Updated The respective subsidiary or sales partner will be happy to help you. Please check the contact information of the local contact. Related articles Gearhead: Mass inertia How to buy a product from maxon motor? Warranty Speed measurement and Accuracy of speed control I am an American customer and do not have to pay sales tax. How can I submit the custom exemption certificate? Comments 0 comments Please sign in to leave a comment.