Why is my blender overheating and smoking?
There is a strong smell of burning the last few times I've used the blender. Then when I take the cup off, it is smoking for a little bit. What is the issue?
OK, it seems to me that what happens is that if we don’t really take care (I’m sure you do, but maybe you, like us, have teenagers in the house that don’t) to thoroughly clean the blade properly each time, then whatever you have blended dries (you often cannot see it) somewhere around the blade spindle. Eventually this dried smoothie builds up and creates friction, which is what creates the noise and the heat, which in turn leads to the smell of burning. I have returned one NutriNinja for a replacement over this issue before I worked out what was happening. I now know it wasn’t faulty, just had this problem of buildup, which was burning because of the friction it caused, and tainting the flavour of whatever I was blending. So, now I take more care when cleaning the blade immediately after blending, really rinsing it thoroughly under the hot tap and every few days put the blade through the dishwasher. This has stopped it happening.
The issue is the bearing set up is failing. Once that happens, the friction is heating up the metal to the point where it is melting the plastic that surrounds it. Best bet is a replacement blade/lid.
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.
I have had my ninja for about a year and after I made my daughters smoothie today the cup was full of smoke when I opened it and the smell of burning plastic was horrific! It seems as though the plastic or rubber around the blade is deteriorating and essentially melting and burning. I added just ice and water to see what was going on and there were black specks in the ice water and again the cup filled with smoke. I’m wondering if this is an issue Nina would cover under warranty as it seems I’m not the only one this is happening to!
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