Ryan B Belvidere , IL January 09, 2017 Appliance: KitchenAid 5-Speed Blender 60 Oz. Plastic Jar KSB1575BU0 Kitchenaid Blender Ksb1575bu0 / : Blender stopped blending no light codes. How to replace Control - Blender, Ksb15. Tried replacing the controller, I now get light codes that indicate the motor is jammed, though it spins freely by hand. Current suspicion is bad brushes, but still working on it. Controller appears to be part of the problem but not the whole thing Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes