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The blender started being much louder and there is a burning smell coming out of the base. Where should I start if I want to fix it?
Should I order any parts? Or can I just maybe grease it somewhere?
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@hornikmartin those blenders really do not use any amount of grease etc. I suggest that you take it apart using these guides Nutri Ninja BL450 Then check the bearing on the motor and check for any visible damage. You can always post some images of what you find with your question. That way we can see what you see. Use this guide Adding images to an existing question for that
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I have gone through 3 blade assemblies now and I have become an expert and identifying the cause and result of this one issue.
Indicators to this issue:
Stop use immediately buy a new blade assembly.
Learnings:
don’t put the blade in the dishwasher - the rapid heating and cooling breaches the bearing seal.
don’t submerge or leave submerged the blade assembly
Verdict - the blade assembly is not a well constructed part considering it’s high speed use and need for bearing integrity. It is very susceptible to damage and water ingress.
That’s what I’ve found
crwdns2934105:0crwdne2934105:0
Everything you described is what has happened to my ninja blade. And this is my second one to get damaged. I don’t recall submerging it in water because I try to wash it as soon as I’m done making my smoothie. But I guess it’s possible if it happened as I washed my dishes and it sat in the sink. Or when someone else washed the blade for me while I was busy. Now I know what to do and hopefully this next blade will last much longer. And speaking of longevity, how long should the average ninja blade last? Does anyone know? And my final question: Do I need to worry about my ninja blender base having any damage because of this issue? The first time this happened, I threw out the base and bought a whole new set which is my current one. Thanks for any help/advice on this topic. This website is super helpful!
I had a similar failure, but I don't think it was caused by heat. I think it happened because I overfilled the cup, not leaving enough airspace, and the pressure from blending forced liquid past the seal.
Hi Jono, thanks for the info - this is exactly what has happened to mine. Could I just check though that I completely understand? I basically can't use the smoothie jugs any more because of the screeching sound. I replaced the blade a couple of months ago and it was ok for a bit, then started back up again. Both the food processor and blender jugs work fine, it's just the smoothie jugs. I had the issue you described - a lot of black grease coming out, bits of black plastic leftover and a burning smell. What can I do to be able to use these parts again? When you say blade assembly, do you mean the blade that screws into the smoothie jug? If so, replacing it only temporarily helped. Anything else that might work?
Thanks for this info! I recently made a shake and noticed smoke and a weird smell. Not too long after I drank the shake, I got very sick and threw it all up (sorry for the TMI). After reading this, I blended only water and it completely changed color, confirming that rust had leaked into my shake making me sick. I'm pretty sure I ruined the bearing seal over time by putting the blade in the dishwasher. I'll be ordering a new blade assembly ASAP! Thanks again for the heads up- I'm so glad I saw this before anyone else got sick from using our Ninja.
will changing the blade assembly solve the issue? or do I need to replace the entire blender?
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Part 1: first attempt
Here's what I found with my Nutra-Ninja. Melted plastic after unscrewing the wheel driving the blades. Note: It's a left-hand thread. Applied some silicone spray and this eliminated the vibration (for now anyway, will see how it goes).
Part 2 second attempt:
Took the extractor blade assembly apart (again) to work on reducing the amount of noise coming from the blender. The model I'm working on is the "Nutra Ninja Nutri Bowl Duo with Auto-iQ Boost", models NN100, NN100A, NN101, NN102 - these model numbers use the same motor and extractor (blade) assembly.
Removed the bearing retainer:
Pulled out blade assembly, cleaned and lubricated it with silicone spray. Then reassembled. Reduced the noise level a little bit.
To see where the most of the noise is coming from, the motor can be run without the extractor blade assembly installed. Just attach one of the cups and briefly run the motor to see how much noise is generated. Compare to noise level with extractor blade installed. For my blender, there seems to be 2X the amount of noise when run with the extractor blade vs just the motor running.
Note: there are two stainless steel bearings installed. Manufactured by Ningbo Zhenhai Hualei Bearing Co., Ltd - (HLGS). Part number is: S698RS. Bearing size: ID x OD x hole size = 8mm x 19mm diameter x 6mm thick. Bearing is a sealed unit.
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Our Ninja Nutri System (BL494) is about 5 years old. We only use the smoothie cups. I have replaced the blades 2x now. The last time was in May 2024. Brown stuff coming out of top (I also put in top dishwasher - never had a problem in the past until now). I am purchasing 2 more. Will no longer use dishwasher or submerge. I am wondering if the base is "dying" though as well. Super loud!!!!
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Our Ninja too has had recent issues. I just did the water test and see the water went cloudy and the motor smoked during use. It is time to retire the Ninja, but worry we have been consuming toxic substances.
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I blended coconut oil and hot water to lubricate the blades, and it works fine now. Just need to do a bit of regular maintenance on the blade lubrication from time to time. Use only food grade oils for this that are safe for consumption.
I blended coconut oil and hot water to lubricate the blades and it works fine now. Just need to do a bit of regular maintenance on the blade lubrication from time to time. Use only food grade oils for this that are safe for consumption
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I have a Ninja BL685 that emits an odor when mixing smoothies. How do I FIX?
crwdns2934271:0crwdnd2934271:0 John Souza crwdne2934271:0
tengo el mismo problema, la compre hace tres meses
crwdns2934271:0crwdnd2934271:0 brunox21 crwdne2934271:0
I bought a brand new blender and I get the burning smell. Had the same thing with the last one. I know they sometimes smell because they are new. But that shouldn't last
crwdns2934271:0crwdnd2934271:0 Claudia Young crwdne2934271:0
So I took a gamble…I put about a half a cup of water in the cup and about a quarter of a cup of olive oil. I blended the mixture for a few seconds. The olive oil released the black gook that was inside the blade mechanism. I then rinsed the blade and dried it and blended the olive oil and water again. The olive oil completely lubricated the blade mechanism. It's no longer stiff and moves freely nor is there smoking or high pitch sound. Olive oil is water soluble so even if I get some in my smoothie it's not harmful. Moral of the story is I think there is a way to lubricate the blades without having to take them apart. Just like you would put olive oil in your baking pans to lubricate them the blade mechanism need it too.
crwdns2934271:0crwdnd2934271:0 niccic crwdne2934271:0
Legendary suggestion!
I was thinking I had a motor burnout with the smell.
Your tip seems to make it quieter & NO smell.
THANK YOU!!
crwdns2934271:0crwdnd2934271:0 monica_mann crwdne2934271:0
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