If your Ninja blender is not working properly, you may be able to repair it yourself. Before attempting to repair your blender, make sure that it is unplugged and that the blades are not sharp. If you are unsure of how to fix your blender, you can contact customer service for help.
To troubleshoot a Ninja blender, first check the power cord to make sure it is plugged into an outlet. Next, check the blade assembly to see if the blades are dull or damaged. If the blades are dull, they can be replaced with new ones. If the damage is more extensive, the entire blade assembly may need to be replaced.
If your Ninja blender still will not work after troubleshooting, you may need to replace certain parts. The most common parts that need to be replaced are the motor and drive shaft. These parts can be purchased from online retailers or from customer service.