If you notice your blender overheating, it doesn't mean you need to throw it away just yet. If you have a high-tech blender, you may need to replace a single part or give it a good cleaning. Oftentimes not overloading your blender can be the solution. For expensive blenders, you may wish to it repaired before tossing it, as you may be throwing away a $500 blender that is fixable.