回答“Why is my blender overheating and smoking?”My Ninja is a Nonja. We’ve had ours for about 2.5 years. It just started doing this. The blase assembly is really hard to turn too. We use this every day, clean it thoroughly, and put it away. I can’t see anything impeding the blade from turning . I think it’s a design flaw. - Oddly, my regular old school blender did the same thing today, except the blade assembly moves freely. Two blenders in two days. Ugh.