Question about KitchenAid K5SS Heavy Duty Commercial Stand Mixer

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My k5ss mixer will not turn on, I checked power source to the contacts before and after circuit board. i also took out the brushes which look good. what else is there

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  • osgood Feb 28, 2009

    The K5SS mixer is completely dead ...plug it in, turn it on and nothing...I'd love to repair it myself....any suggestions?

  • rdunn_dru May 07, 2009

    my mixer has very little "mileage" on it, although it is about 20 years old. it has been in its' shipping container most of the time--in storage. recently i took it out to try it and it ran for a few seconds, then stopped and would not turn back on. i too checked the power, etc but could not find and obvious problem ( i did not disassemble the unit)

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Looking from the rear of the mixer, insert the LEFT brush so that the champfer is facing down. Then insert the RIGHT brush so that the chamfer is facing up. that fixed the problem for me.

Posted on Apr 14, 2009

  • Kulwant Mahal Feb 10, 2013

    does anyone have picture showing how to insert brush back?

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As it turns out...I had removed the brushes to check them and inserted them back without reference to their orientation...that is each brush fits into its slot any one of four ways rotating them 90 degrees each time. Well it turns out that the machine will not run...it will be completely dead...if the brushes are not in the proper orientation. There were no telltale marks on my brushes indicating which side was up so I rotated them and inserted them in practically every possible permutation and turned the machine on each time until I apparently got it right since the machine runs fine now. By the way always turn off and unplug the mixer before inserting the brushes. A pretty simple solution if you've removed the brushes and also very difficult to repair since there are so many combinations considering you've got to work on both sides of the machine at the same time.

Posted on Apr 01, 2009

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Hi guys. Goto www.mendingshed.com and locate the free Kitchenaid Service Manual. Download this comprehensive document and begin your troubleshooting task. This manual has everything, and more, that you need.

If this solution has assisted you, please rate it. Good luck! ricardok45

Posted on Mar 31, 2009

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1 Answer

Mixer is not turning on. Control board?


First check the simple things, are the brushes in properly, they are keyed to only fit properly one way. Look in the hole with a torch and line the missing corner up with the blocker right inside. If you have fried something it could be damaged switch contacts on the black control plate or even weaker would be the phase board at the top just under the back cover. Testing for circuits with a multi meter will prove everything except the phase board. If you have circuits everywhere they should be then change that board.

Apr 19, 2016 | KitchenAid K4SSWH Mixer

1 Answer

How do I fix a kitchenaid stand mixer that won't start?


First make sure it is plugged in.
Second make sure the outlet is not GFCI, check it with a lamp to ensure there is power.
Check the black screws on the side first after you unplug it from the wall. They will screw out with a dime or wide flathead screwdriver.
be carefull this is where the brushes go.
Caution: They are spring loaded. And the cap will fly if you are not careful. check both sides to make sure the brushes, little square shaped pieces of carbon, are long enough and making contact.
You can pick a new set up for your model on amazon pretty cheap and they are a snap to reinstall. If this fails you have to check the rear section of the mixer to ensure the circuit board does not have any burnt pieces on it. It will be obvious when you see the tiny PCB if there are any dead components. You can also pick these up on Amazon fairly cheap. Aside from that find an appliance repair shop where you live and have them fix it.

Dec 15, 2015 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Was working few years but doesn't start at all.It being a month without using it, then trying to turn it on but nothing.No issues before. Watched DIY videos just replaced its Phase board, nothing


You really need to get a Multi meter and follow the power, you have replaced the phase board so we can probably discount it being that.
First check that the switch contacts behind the black control board are really touching when you move the speed control lever to turn the mixer on.
Next the cable, do you have continuity from the wall plug to the control board on phase & neutral, (Check green earth wire as well for the sake of safety) that will be the black wire and the white wire on the 2 lower plug in contacts on the black control board at the back.
Next remove the carbon brushes, do they have reasonable length and most importantly are they fitted correctly with the corner key aligned with the blocker at the bottom of the brush holder.
Next with brushes out check for field winding continuity. On the other side of that black control board to where the power comes in there will be a red wire and a white wire that disappear into the motor housing. One of the wires will have a circuit to one of the brass brush holders and the other wire will have a circuit to the other brush holder. The resistance of both of those circuits should be pretty much identical.
After you have done those tests you should begin to have a clue as to where the problem lies.

Feb 17, 2015 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

KITCHENAID MIXER WON'T TURN ON ?


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...

1 Answer

My kitchenaid k5ss will not turn on


Did you remove the brushes at any point? If you did it is possible that the brushes are installed correctly. The brushes have a tapered/dog eared side to them, this needs to be lined up within the mixer, if they are not lined up correctly the mixer will not turn on.

Was the speed control board cracked or was it the phase control board? If the bottom screw on the speed control plate is not adjusted correctly the mixer may not turn on as well.

If neither of those fixes the problem try the troubleshooting steps in the service manual. Here is a link to the service manual for the K5ss mixers. http://lib.store.yahoo.net/lib/mendingshed/kitchenaidservicemanual.pdf

Thank you,

Colleen
Customer Service
MendingShed.com
800-339-9297

Mar 18, 2013 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Wont turn on


Try checking the brushes located on the side of the mixer ,theres one on each side under a black plastic screw make sure you remember how you took them out,put them back same place.

Oct 23, 2012 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

Replacing the brush


Hi DENAULTR, this is a repeat of my previous answer to your problem. It would also be helpful to have the Parts List manual on hand. If you're lacking one, you can download a PDF version 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 part names and numbers. Locate Illus No 47, Brush holder assembly that includes Illus. Nos. #28, 32, 33, 34, & 46, and Illus. No. 29, Brush & Spring assembly respectively. Make sure you orient each bruch correctly following the illustration here: The Parts List diagrams 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 26, 2010 | KitchenAid K5SS Heavy Duty Commercial...

1 Answer

My k5ss mixer will not start ,I remove the 2 screw on each side of the head, i put them back and now it wont start


Hi DENAULTR, I hate it when that happens. Those two “screws”’ are your mixer’s electric motor brushes. The slotted black threaded plastic parts are just the Brush Holder Caps and are the protective covers to the brush holder assemblies. They allow access to the brushes when they need to be replaced without having to take the whole mixer head apart.
From what you’ve described, I suspect that one or both of the brushes is (are) not seated properly when you reinstalled them. The brushes need to be installed so that they both seat correctly on the armature's commutator or you won’t get any ‘juice’ to the motor. See the illustration below:
9218969.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 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 part names and numbers. Locate Illus No 47, Brush holder assembly that includes Illus. Nos. #28, 32, 33, 34, & 46, and Illus. No. 29, 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 26, 2010 | KitchenAid K5SS Heavy Duty Commercial...

2 Answers

Motor made a grinding sound and stopped. Took out brushes to check. They aren't badly worn. Motor is cooled now and still won't start.


BGL0514 - Are you sure the grinding sound was coming from the motor, or was it more likely coming from the transmission? It appears that your mixer had a mechanical failure in the transmission box or planetary gear assembly of your mixer - one of the main gears has failed, hence the loss of power to the agitator.
The inspection and troubleshooting of the transmission is a DITY capability, particularly if your mixer is out of warranty. Just be sure to have the correct Part List manual around when you start to disassemble your mixer. If you're lacking one, you can download it from the KA website. Click on Customer Care>Locate Manuals & Guides> Enter the 6 character model number, and then select Parts List file. You can check the page titled 'Case, Gearing & Planetary Unit, for the disassembly, troubleshooting, and reassembly of your mixer, along with all the parts. It can be messy but gratifying. Once apart you can check for any other unseemly wear and tear on the gears, etc. Here is a link to an excellent webpage for disassembling/fixing your KA Mixer: http://www.neilcrockett.com/mixer.htm
Finally, with respect to your brushes that you removed, I'd suggest removing them again and making sure the contacts are facing in the right direction to contact the armature. The concave contact face should be resting completely on the armature. If you've turned it 90 degrees too much, it wont' seat properly and you'll get no 'juice' to the electric motor, so it won't start. I hope this helps - Howard, Burke, VA
If this solution has helped you, please rate it. hslincoln

Nov 19, 2009 | KitchenAid K5SS Heavy Duty Commercial...

2 Answers

I have disassembled my K5SS Kitchen Aid mixe with all gears removed in order to solve its electrical problem. When I plug in the motor and move the speed lever, there is no movement or sound of the motor...


Unless it sits at the back of the motor behind the vent cover. I couldn't find one anywhere on ours either. Check the motor brushes for broken or badly worn carbons, or collapsed springs. It could be a broken wire at the plug end or something wrong with the speed switch. Some strategic voltmeter sleuthing is required. Try turning the motor shaft while the power is on. It may have a dead commutator segment.

Aug 25, 2009 | KitchenAid K5SS Heavy Duty Commercial...

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