Question about KitchenAid Food Mixers
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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
SOURCE: kitchenaid 250 watts k4ss mixer
The repair manual says that the mixer can make this grinding sound at slow speed, like stir or 2. This is normal, especially until it warms up. This is the sound of the gears turning at slow speed.
Posted on Mar 25, 2008
SOURCE: KitchenAid 600, Stand Mixer -
If the beater is grinding when it meets resistance, it generally indicates that an internal gear has broken or been stripped.
With the Professional 600 stand mixer, up to 14 cups of white flour or only 8 cups of any flour are recommended at one time. Speed 2 is the only speed that should be used for bread dough and it should never be kneaded for longer than 7 minutes. Failure to do any of these things make cause problems for the mixer motor.
If you are interested in self-repair, I recommend mendingshed.com. They have internal parts available to order and also have a .pdf file for the Kitchenaid Mixer Service Manual.
If you are interested in a repair facility, please visit the following link:
This is a listing of certified repair locations.
Also, if the mixer is less than a year old, Kitchenaid may replace it under their 1 Year Manufacturer's Warranty. I would recommend calling their customer service. Their toll-free telephone number is:
Posted on Jul 16, 2009
buy a new mixer unless you are able to replace the motor because it is most likely burnt up because we have gone through 6 mixers and the motor slows down and eventually stops and just buzzes
Posted on Oct 14, 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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