Question about KitchenAid K45SS Classic Stand Mixer

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Kitchenaid mixer running too fast.

Mixer is running faster than it should and the motor seems much louder than it has been.

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Change the speed control board. Repair alot of these

Posted on Dec 24, 2009

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Posted on Jan 02, 2017

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Kitchenaid mixer makes a clattering sound at low speeds - seems to be coming from the governor or the control plate - any ideas, is this a common problem and how should I approach it?


Did it start clattering before or after it was re-greased? The K5ss by Hobart is an excellent mixer and there is no reason why it can't go on for a bunch more years. First you can get clattering if the brushes are less than 5/16th inch long, But that is not usual.

I would think that the rear bearing which is in the center at the rear may be more your problem, That bearing is behind the speed control switch and behind the governor (don't discount the governor being the problem) and is attached by two 3/8th nuts and slides onto the two guide slides that hold the motor parts in place. What i have found over the years is that 1.) the studs can bend (happens but not often) 2.) the bearing which is in the center of the big aluminum housing, (Called rear bearing assembly) moves over the years and causes humming and clattering.
So what to do about it? Loosen the two nuts a turn or two (do not remove) look at the top of the the bearing assembly and you will see a metal tab (used to attach the rear cover) (make sure the bowl and beaters are not attached to the machine) now plug it in and turn it to stir speed or number 2 position, put your finger on top of the tab and press down while the mixer is running, you should hear a change in pitch, and it should effect the clattering noise, (It will go up or down, or you may hear a new noise a light humming) (The humming is caused by the armature no longer in the center of the motor field and getting to close to the stator of the motor while it is operating, when it is out of center the developed magnetic field that causes the armature to turn gives off the humming noise because it is out of center or balance) if you notice that the clattering gets louder or softer by pushing down or pulling up you have to play with it to find the sweet spot, when you find it tighten the two nuts down just enough to hold it in place and no more. It takes a while and you wont hurt the machine but never go above speed two while doing this. If that fixes the problem you may have to do it more than once as the machine continues to age or if you move the machine around a lot. the real problem is the armature needs replacing (if this is the problem). Next you may have the machine timed wrong and that has to do with the speed control switch entirely, let us know what you find if these are not the problems we have a ways to go but they are the usual culprits with your symtom.

Feb 21, 2013 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Mixer makes a loud ticking or clicking sound at low to moderate speeds, like a clock tick. At faster speeds and high speed, the loud tick is drowned out by a louder grinding sound. All of this sounds...


I don't have a direct answer for you. There are many things which could cause the noise from a beater simply hitting the bowl to internal gear problems. You did not say which model you have so take a look at the two Service Manuals linked below. One of these ought to cover your machine.

http://www.kitchenaidparts.eu/documents/pdf/service-manual/classic-svc-manual-new-email-version.pdf

http://ep.yimg.com/ty/cdn/mendingshed/kitchenaid6qtservicemanual.pdf

Apr 06, 2017 | KitchenAid Food Mixers

1 Answer

The mixer will not start. Power gets to the unit and the blade does turn manually.


Hi - I assume you mean to say that the motor turns on, runs in all speeds but no power is being transferred to the planetary head and beaters?

If this was preceeded by some intermittent run conditions like occasionally skipping beaters and some louder than normal or different run noise then it's likely that the nylon Worm Gear has lost teeth and is no longer making contact with the motor gear. It is part of an assembly which is directly coupled to the motor. Disassembly is required to get at this part and some mechanical skill to replace it. If the mixer's a few years old and/or gets a lot of use, the gear grease should be replaced too. For the gears and other parts, including the grease - check out http://www.goodmans.net/get_dept_933.htm They seem to have just about every part needed and fair pricing. Appliance Parts Pros is another source of parts and diagrams. Warning - mixer disassembly is a medium complexity task and could ruin your day...

Good luck!

DZII

Jan 02, 2010 | KitchenAid K45SS Classic Stand Mixer

1 Answer

My epicurean mixer (5quart) stand mixer sounds loud but isn't overheating is that abnormal or if so what should I do


KAY – You don’t mention how long you’ve had your mixer or how intensely you use it, which would be helpful in assessing your question. Our first KA mixer we got in May 1989, seemed ‘whisper’ quiet compared to the replacement 6 qt Pro mixer our children got SWMBO for Christmas in 2006. The new mixer was so noisy that my wife called Kitchenaid to complain. The wonderful KA ‘Helpers’ explained that KA had changed to making all metal gears in their mixer transmissions as opposed to having one plastic gear (intended to fail instead of burning the motor out). That change from plastic to metal is then main reason your KA mixer seems to be much louder. You should be able to judge if your noise level has increased or stays the same during normal use. Since you stated that you don’t notice any overheating of the mixer I would say that the noise level is appropriate and wouldn’t be overly concerned at this point. That being said, if you hear a change in the noise level – usually louder, it could be indicative of mechanical issues in the transmission, which is what finally happened our mixer. One of the gear teeth broke and the agitator froze up. But that is another story…
I hope this helps. Good luck! Howard – Burke, VA
If this solution has helped you, please rate it, thanks!.hslincoln

Nov 27, 2009 | KitchenAid KT2651X Epicurean Stand Mixer

1 Answer

I have a KitchenAid Pro 600 stand mixer, and it makes a loud whining noise which gets louder and ear piercing the faster the speed setting. I did not make this noise when I first got it, just a gentle...


It appears that you've got some internal transmission gear issues, and a situation similar to my wife's mixer, which we got new in Dec 2006. It could be as simple as the gears have become loose and are making different contact, hence the noise. The higher the speed, the louder, higher pitched sound you'll get. It may also be indicative of a potential gear failure (after all our increasing noise, 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!

Jun 08, 2009 | KitchenAid KP26M1X Stand Mixer

1 Answer

Kitchen aid mixer


take off the chrome ring around the rotator. remove the screws that were hiding under it. pull off the rotator and replace the "O" ring on the shaft.

Mar 08, 2009 | KitchenAid K45SS Classic Stand Mixer

1 Answer

KitchenAid K45SS will not run


If you know what the brushes in the motor are then you should get some from kitchen aid or an appliance parts store. If you dont know what brushes for the motor are then find a local repair shop that will fix it for you. All the best.

Mar 26, 2008 | KitchenAid KSM5PS Heavy Duty Stand Mixer

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