Question about KitchenAid K45SS Classic Stand Mixer

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Won't start Removed back cover to clean. Now the unit will not turn on.

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Adjuster has been shifted slightly during cleaning. Common fault easily fixed by adjusting centre screw while switched on. Best take to repairer as this is electrically hazardous.

Posted on Sep 21, 2009

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Posted on Jan 02, 2017

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Why won't our kitchenaid stand mixer run?


He rdnowak:
I am sure #10 in the highest speed, but are you saying it will only run at #10? if so I would start by removing the cover again. Hopefully no parts are missing. Make sure the selector switch is moving things on the board if possible. I mean if you can move it with you finger you should be able to move it with the selector lever. Sorry for the trouble but I have never taken mine apart I just clean the out side. I do no this. Sometimes I must take something apart and reassemble them several times before getting them to work the way they are supposed to.
Best of luck
'RR

May 15, 2014 | KitchenAid Pro 600 Stand Mixer KP26M1X-...

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KitchenAid mixer not running or needs new brushes.


If you run your KitchenAid mixer long enough it will need new brushes. Symtoms would be eradic running, runs slow (no additional noise) or a smell of sulfur when running.

If your unit has any of these symtoms you should change the brushes. Brushes are available at http://www.appliancepartspros.com/Appliance-Parts/Kitchen-Aid-Mixer-Parts/index.aspx . They cost $3.55 each and you will need two.

First remove the screws holding in the brushes and remove the brushes.
The brushes have one corner which is shaved off at a 45 degree angle. Make a note of which direction it is facing as this is how the new brushes must be orientated in order to seat properly.

The brushes are located on opposite sides of the main mixer body under a black cover plate with a slot. Remove the cover while holding onto it as it is spring loaded. Remove the brush. Do the other side also.

Remove two screws from the rear of the unit holding the cover between the two halves of the unit (top and bottom). You will need to remove all the screws on the underside of the unit. There should be four total.

Next you will have to remove the power beater driver located at the front of the unit.The shaft located vertically has a pin in it which needs to be driven out with a punch and hammer. Then a "C" clip must be removed from the shaft. Use a "C" clip plier available at any automotive parts store. Place the ends in the holes in the tips of the "C" clip and squeeze. This will release the pressure on the shaft and allow the clip to be removed.

Next pry the bezel off around the exterior of the plate which will expose about 6 screws which need to be taken out. When all the screws are removed you can remove the head assembly as well as the top of the unit exposing the motor armature. The armature will be the blackened, segmented part of the armature directly under the brushes.

At this point you should be able to see how burnt the armature is. Using crocus cloth (available at Lowes or Home Depot) clean the armature until it shines. Do not sand it any more than necessary or sand flat spots in it. A light contact is all that is needed.

Clean the armature with any good electronics parts cleaner, available at Lowes or Home Depot, to get rid of any filings. Clean up any filings or dirt in the unit.

Relubricate The gear box with light grease if necessary. Reassemble the unit and install the new brushes. The brushes will only go in one way and work. If inserted wrong, the unit will not run. The brushes must be seated on the armature.

During the assembly process remember to use Lock Tite on all screws to avoid future problems.

Thanks for using FixYa and for the great rating.

hardrocko

on Dec 01, 2010 | KitchenAid K45SS Classic Stand Mixer

2 Answers

Kitchenaid mixer will not start


The model number shown is for the Professional series which does not have a separate rear cover. Below are links to KitchenAid mixer Service Manuals:

Professional 5/6 quart
http://ep.yimg.com/ty/cdn/mendingshed/kitchenaid6qtservicemanual.pdf

4.5/5 quart
http://www.kitchenaidparts.eu/documents/pdf/service-manual/classic-svc-manual-new-email-version.pdf

May 13, 2014 | KitchenAid KP26M1X Stand Mixer

1 Answer

250 watts k45ss classic stand mixer doesn't run


My first guess would be the speed control plate. It has three screws in an upside down triangular shape. The two screws on top control and adjust speeds 1 thru 6, and often times just one screw being out a 16th of a turn will shut the mixer off completely. I would venture that when you were removing the two stud bolts you moved the adjustment screws on the speed control plate. Remember that even a slight movement can shut down your mixer, take a phillips screwdriver and turn the top left screw one quarter turn while the machine is on, it can start on you so don't be shocked and jump with a loaded screwdriver in your hand at the back of an electrical device, stay calm, if no start then try the left screw a quarter turn, if it does not start go to a half turn on each screw, if still no start turn thr screws back to the start place and try the bottom screw a quarter turn left and right, if you do not start by now, then something is wrong in another place, go back to the brushes and take them out and check how you put them in, these are the two most common problems with a no start mixer. If this does not fix your problem or get the mixer to start please come back here with more info. If you motor raced in the first place then I would suspect the phase control board, but when it came back to normal speed it leades me away from the phase board. When the phse control board goes out the mixer only works at high speed. So please let us know so that we can help further.

Mar 28, 2013 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Won't Turn On


There could be several problems some painful some not so much, the simplest one is bad wall plug or bad plug wire, the hardest is that the motor burned out, but i don't think so. The most likely solution is the speed control switch. There are three scres on the switch in an inverted triangle shape/form. The one on the bottom has probable been turned just enough to stop your mixer from working. The speed control switch that you use pushes against the screw every time you turn your mixer on eventually it can turn by pressure and it will shut your mixer off with just a 1/16th inch turn. It is a very simple fix.
Where is the speed control switch? Glad you asked. It is in the rear of the machine. There is a round bubble shaped cover at the rear of the mixer called the end cover, it has one screw (Phillips head) on the top. Take that screw out, then grasp the cover and lift up and away from the mixer. Be careful there are two fragile hooks on the cover that can break if you twist it left or right, just lift up and pull away. when you have removed the cover you will see a black and copper plate staring back at you (it might be all dusty with flower and food particles) look for the adjusting screws at the top left and right corners and one at the bottom center of the plate. The one at the bottom center is the culprit. Take a Phillips head screwdriver and turn it left an eighth of a turn and turn the machine on, if it doesn't work leave the machine on and turn the screw in the opposite direction . ill bet a steak that the mixer starts. if it does you need to replace the speed control plate or take the screw out and put some lock tight on it. BUT!!!! when you do this you will have to completely re-tune the speed of the machine. So if it starts just leave it and you may have to do this once or twice again in the next ten or twelve years. Let us know if this fixed the problem. there are several other possible causes that could make the mixer stop but they are more painful.

Nov 18, 2012 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Mixer won't turn on


Just recheck that you really have put the brushes back in the right way, use a torch and look in the hole. The brushes can each go in 4 ways, only one of which will work. Look for the blocker and line it up with the cut off corner on the brush. It's normally at the back, one side at the top the other at the bottom. After that you need to be looking at everything you have done for a booboo. I doubt it will be water ingress. Make sure the switch contacts come together when the lever moves to position 1.

Mar 18, 2017 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

I have a classic k45sswh kitchen aid mixer. I removed back cover and replaced and now it does not start.Then removed brushes and must have put them incorrect but still it don't start. I notice a angle on...


Hi TRADESGIRLS, you are correct, the brushes have to seat correctly on the armature’s commutator or you won’t get any ‘juice. Unfortunately, the ‘screws’ on the sides of the mixer are just the Brush Holder Caps (brush cover), which allow you access to the brush holder assembly and has nothing to do with ‘adjusting’ the brushes. From what done already, still I suspect that one or both of the brushes is (are) not seated properly.
The brushes need to be installed so that they both seat correctly on the armature's commutator. See the illustration below:
266c0fe.jpg
I'd suggest removing them again and making sure the concave contact face rests completely on the armature’s commutator. If you've turned it 90 degrees too much, it won’t seat properly and you get no power to the motor.
It would also be helpful to have the Parts List manual on hand. If you're lacking one, you can download a PDF version from the KA website at: http://www.kitchenaid.com/flash.cmd?/#/page/home.
Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, in your case use K45SSW, and select the first file K45SSWH0.pdf (341.41 KB) listed under Parts List (1) and then check to verify this matches your mixer model.
Turn to pages 6 & 7, titled “Motor And Control Parts”, which provides an exploded view for the disassembly and reassembly of your mixer’s electrical components, along with all the parts. Locate Illus No 32, Brush holder assembly that includes Illus. Nos. #18, 21, 22, 23 & 31, and Illus. No. 19, Brush & Spring assembly respectively.
The Parts List illustration along with the picture above regarding the orientation of the brushes should get your mixer powered back up and operational. Good luck! I hope this helps. Howard, Burke, VA
If this solution has been helpful to you, please rate it, thanks! -hslincoln

Feb 03, 2010 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Wife removed rear cover, blew out dust, brushed lightly with toothbrush. Also removed round black cover on side releasing a spring and cam but seems to be put back correctly. When plugged into power outlet...


There may be a few solutions to you problem. it could be that the carbon brushes located at the left and right of the unit are either gone or improperly seated, as they will only work one way. part number for the brushes is 9706416 after checking these and if they are okay. i would check the board to see if there was any bending atall during the cleaning. there is a metal arm that the white actuator slides into on your board. if this metal arm has been bent even by a 1/4 inch or more it wont make contact and your unit will not operate.hope this helps

Thanks

Oct 04, 2009 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Speed Control Unit test?


Take off the back cover. there should be 2 screws on top of a piece of metal, 1 on bottom. Start on turn. it should go about 1x a second. Turn the top scrws. Then go to 6. it should be 3x a second. Use the bottom screw to adjust that. When turn and 6 are corrrect, all other sppeeds are right. There might be something else in between the back cover and the 3 screw panel.

Aug 19, 2008 | KitchenAid KSM90 Ultra Power Series Stand...

2 Answers

Hobart A-200 Motor Direction


No, do not swap hot and N.

First, verify rotation. As the attachment shaft rotates, it should push the engagement pin into the keeper slot. Looking down on top of the mixer, the planetary should rotate clockwise.

If the unit runs backwards, does it start slow? Can you get it to run either way by giving it a push start before turning on the power? If so, your start switch is not working properly. (Which is my guess) Check your capacitor.

There is mechanical and electronic start switches. (Metal arms and a contact or a little gold rectangular metal can.)

Check it out and let me know what you find -- Mike

May 19, 2008 | Hobart A200 Stand Mixer

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