A:Answer Hi there! If your brushes aren't spinning, it could be your brushroll jammed or your belt may have stretched. Please try this: Attempt to spin the brush roll by hand. If it doesn't easily by hand, it is possibly jammed. Remove the brush and clear out any hair and debris. If it spins by hand, remove the bottom plate and check the belt. If the belt is stretched, replacing the belt will fix the issue. If further assistance is needed feel free to give us a call at 1-800-321-1134 M-F from 8am-6pm EST. We're here for you! -Michael, Dirt Devil Customer Care