Question about KitchenAid K45SS Classic Stand Mixer

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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 does not come "on" when switch is moved. Visial examination reveals no loose connections, power switch movement translates to movement in rear electrical area. I don't see a fuse. What could I be missing?

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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

Posted on Oct 11, 2009

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My Artisan KSM150PS won't turn on. Is there a reset button? If so where is it located?


There is no reset button. UNPLUG THE MIXER Remove the back cover and look for a broken wire, commonly one of the bottom two on either side. If none found you will need to use a multi meter and test circuits. If the machine has done a fair amount of work then check your carbon brushes, one under each black round side cap. Brushes are keyed on one corner, the motor will not run if you put one in the wrong way, you can look in the hole with a torch to see which corner is blocked.

Nov 25, 2016 | KitchenAid Artisan KSM150PSAQ Stand Mixer

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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

1 Answer

Kitchen Air Mixer will not come on


The easiest thing to check is the brushes. Unscrew each black (sometimes white) round cover on either side of the motor housing and see that there is enough carbon brush remaining.

Since the brushes were most likely ok, then I would suspect the solid-state control phase board. These are pretty easy to replace. You can find the service manual for your model on line.

Jul 22, 2014 | KitchenAid Kitchen Aid K45SSWH Classic...

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

Trying to replace carbon brushes on Kitchenaid stand mixer. I understand from reading other answers that there is a ''right way'' to insert them. I did not pay close enough attention in removing old ones...


Check the brushes. They get caked up with burned flour. Remove the brush caps and pull the brushes out by their springs, being VERY careful to note the position of them since they only go back in one way. Measure the free length of the spring before pulling it out. It is critical that you write down the length sticking out with very slight pressure on it so that it is seated against the armature when you measure.

Clean the curved surface of the carbon brushes with a sharp knife being careful not to scratch the curved surface. If you have them installed wrong they will not go all the way in and will not contact the armature and it will not run. Measure the length, as done above, of the spring to make sure it is in correctly!! If it is not in correctly the spring will stick out 1/4 inch longer than it should.

Keep turning the brush until you have the shortest amount of spring sticking out when you press it in all the way then slowly release pressure on the end of the spring. You will know when it is in correctly since the difference in length is noticable. The curvature on the front of the brush must line up with the curved surface of the armature which runs from the front of the mixer to the rear.

Apr 18, 2010 | KitchenAid K45SS Classic Stand Mixer

1 Answer

Mixer won't turn on. I had the pin problem everyone describes. Finally was able to get the pin back in with some serious hammering of the pin and then tightened the set screw on the bottom. Fabulous!...


They are the brush springs. The brushes get caked up with burned flour. Remove the brush caps and pull the brushes out by their springs, being VERY careful to note the position of them since they only go back in one way. Measure the free length of the spring before pulling it out. It is critical that you write down the length sticking out with very slight pressure on it so that it is seated against the armature when you measure.

Clean the curved surface of the carbon brushes with a sharp knife being careful not to scratch the curved surface. If you have them installed wrong they will not go all the way in and will not contact the armature and it will not run. Measure the length, as done above, of the spring to make sure it is in correctly!! If it is not in correctly the spring will stick out 1/4 inch longer than it should.

Apr 17, 2010 | KitchenAid KSM150PS Artisan Series Stand...

1 Answer

KitchenAid K5sswh mixer after replacing plastic gear-no power


Hi COVINIO. Yes, the "large black spring loaded magnetic screws on the sides of the mixer" are your mixer's brushes, which supplies electricity to the electric motor. (The black cap is the brush cover). I suspect that one or both of the brushes is (are) not seated properly. Did you remove the brushes to replace them or were you just inspecting them, when you replaced your plastic worm gear?
The brushes need to be installed so that they both seat correctly on the armature's commutator. See the illustration below:
cb20d79.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 KSM50P (Your K5SS mixer falls within this manual), and select the first file KSM50P.pdf (438.31 KB) listed under Parts List (4) 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 47, Brush holder assembly that includes #28, 32, 33, 34 & 46 which is the brush holder insert, and Illus. No. 29, brush & Spring assembly respectively. The 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

Jan 29, 2010 | Food Mixers

1 Answer

My Kitchenaid mixer is tripping the power in my house. I removed the back and found two identical springs loose in the machine. Have you seen this problem before? Cheers Anthony.


Anthony,

Based on your description, it sounds like those identical springs are a part of your motor brushes. Normally, they would be attached to the motor brushes (depending on model), which are located behind the 2 slotted round access caps about mid way, front-back on the cover assy. My hunch is that the spring(s) may have gotten dislodged during a previous dis-reassembly and had came in contact with the armature and a grounded component causing a short and circuit overload ( breaker trip). I suggest that you locate the appropriate diagram for your mixer and ensure that your brushes are assembled correctly - all parts accounted for. You can get diagrams and parts lists from various online vendors, such as: http://www.appliancepartspros.com/partsearch/modelsearch.aspx?model=k45ss Use the 'Motor and Control' diagram as a reference.

Good luck!

DZII

Jan 03, 2010 | KitchenAid K45SS Classic Stand Mixer

1 Answer

I removed the Side springs ( Brushes) and not the unit wont start


You sure boo boo'd. Just kidding It's important that the brushes go in the same way they came out and in the same holes because of the contact patter and curvature wear. The trailing edge of the brush is longer than the lesding edge Which is which? If you were totating something clockwise, the 12 would be the lesding edge and the one would be the trailing. So, the longer of the wear curvature would go on the one(1) side and the shrter towards the twelve. Now, how do you know which way it was rotating? The commutator is the part the brushes ride on, Those copper bars. Look closely and you can tell bby the black tracings which was the leading of rotation. There is usually mor on tracings ontrailing edge of the bar so. The trailing edge of the brush would be on the same side as the black tracings on the copper bar. Of course, Unplug it before messing with it. and make sure the brushes are seated and not binfing in the holder. Use an attachment to rotate the motor once or twice(unplugged) in order to set the brushes. Good Luck, Ned

Sep 24, 2009 | KitchenAid K45SS Classic Stand Mixer

2 Answers

Kichenaid Mixer K5SS Electrical Problem - All gears have been removed. Motor shaft turns easily. With speed lever in off position, 0 volts go to motor via red and white wires. With lever in any other speed...


I had this problem also: power to the motor, motor not running.

Solution was simple: remove the 2 stators things from the sides of the main housing, clean all the black dust off them, re-insert and everything works fine.

The dust problem is similar to model train sets that I had as a kid at Christmas, the black dust acts as an insulator, preventing power from travelling between two metal parts that you'd think otherwise would conduct.

Aug 26, 2009 | KitchenAid Food Mixers

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