Question about KitchenAid K45SS Classic Stand Mixer

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No power the carbon brushes have worn out a couple of months i replaced them with a japanese worked fine but now have to change them again..and no power?? do you have tips for replacing brushes..and also what type of brushes can be used other than the original? i seem to forget the brush number i used before from MAKITA. THANKS! btw have to use other brands here in the philippines coz kitchenaid parts are hard to come by here.

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Re: no power

Posted on Mar 25, 2008

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4.5 quart. Why doesn't it turn on?

It is not turning on because the power is not getting through the entire circuit. First easy thing to check is the carbon brushes under the black screw caps on the side. If they are worn out just replace them. They are keyed with one corner shaved off so line the key up with the blocker inside the hole where the brush goes. Use a torch to look in there to see it in one corner right at the bottom. You could also remove the back cover and make sure there are no broken wires there, it's not uncommon for one of the bottom wires to break off by the plate they plug on to.

Feb 13, 2016 | KitchenAid Food Mixers

1 Answer

Used my stand mixer one time and now it doesnt work at all

If it is only a month old take it back under guarantee, if you fiddle about you could void the guarantee. If it is out of guarantee I would be looking for a wire off the speed control plate under the rear cover. If someone has been fiddling about removing those black brush caps on the side they may have put a carbon brush back in wrong, they are keyed and only fit one way.

Aug 17, 2015 | KitchenAid Food Mixers

1 Answer


Remove the brush caps on the sides of the motor housing and check the carbon brushes. If they are worn out replace them. They are keyed and will only fit properly one way so be observant. If that's not the problem remove the back cover and check for broken wires on the black control plate. Make sure the switch on the bottom inside of the control plate is making contact. If still faulty check the cable for continuity to the control plate, cable connects to the black wire and the white wire on lower left of control plate. After that you need to check for continuity of the field coil windings. Only thing left after that would be the phase board pcb just above black speed control plate at the back.

Sep 07, 2014 | KitchenAid K45SSWH model 45SS Classic...

2 Answers

My kitchen aid mixer produced sparks inside the engine housing. There was a burning smell.

burned motor, return to store if covered by warranty, or else have motor rewinded by expert motor technician

Mar 18, 2014 | KitchenAid Food Mixers

1 Answer

Will not turn on

Undo the black plastic caps, one on each side. You probably need new carbon brushes. Remove them carefully and note that the brushes will only fit one way there is a blocking stop on the inner edge of the brush holder, you can see it with a torch when brush is out. Line the chamfered off corner of the new carbon brush up with the blocking stop. On one side it is at the back at the top and the other at the back at the bottom ( I think )

Nov 21, 2013 | KitchenAid Kitchen Aid STAND MIXER 5qt...

1 Answer

Won't turn on

Get a copy of the Repair Part List for your model at
On each side of the Motor Housing(1) is the large black Brush Motor
Cap(23). Each Carbon Brush(19) is keyed (one corner is not square)
and is designed to go into the Motor Housing slot but only one way.
Each Carbon Brush must make contact with the Motor Coils. The
motor will not turn if one or both does not come in contact with the coils.
If the brushes are too worn out, of course they won't touch the coils
neither and your motor will not run. You can purchased new brushes
on Ebay if they need to be replaced.

Jul 15, 2011 | KitchenAid Artisan KSM150PSAQ Stand Mixer

1 Answer

I need to know what size of carbon brushes do i need for my oster 6627 milk shake maker


Feb 18, 2011 | Oster 100 Watts 6627 Stand Mixer

1 Answer

How to replace motor brushes? I only can take the small springs after unscrewing the caps on both sides. The carbon brushes are still inside? Tell me how to take them out and just put new brushes with...

I believe the brushes and the spring are one piece, so the brush should come out with the spring. Either the brushes are so worn that you just aren't noticing the little bit that's left, or the block has come loose from the spring. You can tip the machine over so the brush hole is facing down and let gravity do the work. If there's any brush left inside, it should slide out. Otherwise just install the new brushes.

Dec 14, 2010 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

Worked fine, then didn't- getting power

The easiest thing to check is the brushes. There are two large "buttons" on the sides of the mixer. They have a large slot in them. You can use a quarter to stick in the slot and turn the button counterclockwise. Once removed you will see a spring sticking out. Now this is important. On the other end of the spring is a small carbon bar (the brush) which is square and about half an inch long. Note that there is one corner of the carbon bar, the brush, which is removed forming a flat on that corner. Note the position of the flat so that you can replace the brush in the same position. If you don't then the brush will not contact the armature and the unit will never run!

Once removed examine the end of the brush to see if there is some crud on it, most likely charred flour. Carefully scrape the crud off the brush and re-insert it remembering the above . . .make sure it slides easily into position. If it is sticky then remove it again and clean out the brass hole with a q-tip.

Do this to both brushes and the unit will most likely run.

Of course make sure the outlet you are using has power to it!

If it still doesn't run then there is a problem with the control board or the motor.

Mar 27, 2010 | Food Mixers

1 Answer

Mixer quit, was running fine,

probably worn out carbon brush or a break in the wire near the plug

Feb 20, 2010 | KitchenAid Food Mixers

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