Question about Food Mixers
Hello. A bearing in the motor is the likely culprit. Is the mixer under warranty? If so, replace it immediately. If not, check for a local appliance repair shop nearby. When the mixer runs at higher speeds, the ball-bearings can "skip" over flat areas and run smoother. There might be a problem with the gears meshing together improperly. At the slower speeds, any play between the teeth surfaces becomes more noticeable.--Hope I helped you.
Posted on Oct 02, 2009
ok as per the problem which you have mentioned that motor is faulty.but as you clearly mentioned that it only makes noise on setting 1 and 3.this clears that motor is proper.in the base of the mixer in both the inner and the outer side there are gears and brushes.that are got cracked so its making noise on particular settings and not in particular settings.get that gears replaced. ------------------ this will help.thank you for using fixya.keep updated.please do rate the solution.thanks.
Posted on Oct 01, 2009
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Posted on Jan 02, 2017
SOURCE: Grinding Noise
If it's metallic sound you are loosing teeth on a gear or two. This is caused by lack of lubricant or simply fatigue of the material of the gears. Don't use it, you can get metal flakes in your food.
Take it in to a repair shop and have it fixed. The money spent is well worth it because if done correctly will last another 12 years.
Posted on Oct 23, 2007
Hi. If your mixer is under warranty, call Kitchenaid. They are very good at replacing mixers under warranty.
If you are out of warranty, this is where the fun begins, NOT!
Remove the silver band from around the top of mixer. Remove 4 screws that secure the top cover, remove cover and at the front top of the machine locate the transmission cover. Inspect this cover carefully for cracks. If you find cracks in it...You have just discovered Kitchenaid's dirty little secret. A cheap plastic transmission housing! The failure of this cheap part is the cause of all of the rest of the damage inside the mixer, which may include a destroyed worm gear and shaft, destroyed bearings and their seats. You're not alone. I estimate that thousands of these plastic parts have failed causing great damage to the rest of the mixer
Kitchenaid's replacement housing is made out of metal. If you feel up to the task of repairing the mixer yourself goto the Kitchenaid website and do a search for the parts catalog for your mixer model, these will assist you with disassembly, reassembly and parts ordering.
If you're not up to the task, take it to an authorized repair place once you have put the cover back on.
Even if you're out of warranty, you may be able to have Kitchenaid pay for the replacement parts, they did for my mixer. Be persistent with them and try to get to a manager with your complaint. This cheap piece of plastic has no business being installed on a high-priced machine.
If this solution has assisted you, please rate it. ricardok45
Posted on Mar 20, 2009
I am assuming that when you oiled it you merely squirted oil in various places without actually taking the mixer apart. You probably did a good thing if....if....it corrects the grinding noise...but...oil is not only an excellent lubricant it is also a very good insulator and if you got oil into the switch area where it turns on then you may have got oil inside and it can be insulating the place where electrical contact is made. For a possible quickie solution you might try to use something to eliminate the oil that may have got into the switch. Best thing is probably to go to Radio Shack and buy their contact cleaner spray can and use it on the switch. That stuff is real expensive though. A cheaper solution might be to use isopropol alcohol if you have some handy or even spray carburetor cleaner as both of them will completely dry quickly. Be sure to unplug the unit before doing this and allow it to completely dry before plugging back in. You can do all of this without taking anything apart. If it then runs ok then I suspect the grinding noise is still there as the gears inside probably need a little grease. If you want to go that trouble you can remove screws and open the case up...carefully...and put a dab of auto wheel bearing grease on your finger and rub it into the area where the gear teeth are. Do not use a big gob of it ... just a little amount is all needed. If you do not have any grease handy you can use vasline if you have some in the house. If the mixer did not turn on after the above dousing of alcohol etc. from the outside then you may need to do the cleaning directly on it from inside...so if you do take the mixer apart spray the cleaner directly inside the switch. When you take the mixer apart do not remove the shaft/motor/armature or other parts...remove only the cover and enough to do the repair. The possible problem is that if you take it apart too much it will be difficult to get back together particularly if you remove the armature and contact area of the commutator where the carbon brushes are. While inside there though look at the copper commutator area where the tiny carbon brushes make electrical contact. They may be pitted or not allowing the brushes to make good connection. To correct this you can spray contact cleaner directly onto the contact area to clean it. Let it dry and reassemble and the mixer should run ok. If the mixer is very old and been used a lot then the contact area of the commutator may be worn so badly that it does not make good contact with the brushes or the brushes may be worn down so much that they no longer make good contact. In that case you would need to actually remove the armature assembly...what I told you not to do above if you are not too good at reassembling things. Once the armature is removed it is easy to take some fine grit sandpaper and clean the copper commutator making it clean and bright copper color like new again. Also if the carbon brushes are almost totally worn down you probably can find some new ones that will fit ok by taking the old ones to your local hardware store as many of them stock carbon brushes nowadays. If you do all this and are able to reassemble the mixer then it should be just about as good as new again. Hopefully you do not need to go to all the trouble of the major disassembly though. Good luck.
Posted on Aug 22, 2009
lgardash, Are you sure it's the motor or could it be the transmission?
It 'sounds' like you've got some transmission gear issues, and a situation similar to my wife's mixer, which we got new in Dec 2006. (Within a week of her first using it, she contacted KA Customer Care and the only 'care' they offered was an explanation that the new KA Pro Mixer gears are all metal and to expect it to be louder than previous models that used a plastic gear (to fail). Well, there's an acceptable level of noise, and an unacceptable level (you don't need to be a mechanical engineer to know when something doesn't sound right) and it seems that my wife's new mixer's operating noise level was always unacceptable. It finally 'died' this past October.) OK I've vented enough on KA... now what might be your problem(s)?
It could be as simple as thorough normal use the gears have shifted slightly in the transmission and the gear teeth are making different contact, hence the grinding/squeaky noise. The higher the speed, the louder, higher pitched sound you'll get. Alas, the noise may also be indicative of a potential gear failure (after our mixers increasing noisiness, the bevel gear broke and the mixer 'froze').
If your mixer is under warranty, contact Kitchenaid. If it's out of warranty, then take it apart and do a diagnostic exam of the gearing. Whatever you find you should be able to fix yourself. Be sure to have the Kitchenaid Part Manual (Part No. 8212278 Rev D) on hand if you attempt to disassemble yourself. It also lists all the parts so that you can determine, which parts, if any have failed. You'd think that the Kitchenaid name would warranty their mixers for a lifetime... So much for quality in America today!
I hope this helps, and good luck! - Howard, Burke, VA
Posted on Nov 03, 2009
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