Question about KitchenAid KSM90 Ultra Power Series Stand Mixer

1 Answer

High speed stir setting

Recently, my KSM90 has been flinging all the ingredients out on the "stir" setting because it runs too fast. I've had this mixer for years and never had it give me any problems, but now "Stir" setting is like "turbo." It will do this speed mixing whether the bowl is empty or not. What can I do to return it to idle speed? It doesn't sound different (just higher sounding speed), it doesn't smoke, smell, or otherwise run any different than it ever has.

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  • Anonymous Apr 30, 2009

    I have the same problem, but I have the KSM100. Just rips the dough all up and sounds awful.

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1 Answer

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  • KitchenAid Master
  • 1,361 Answers

There are several things that regulate the speed, we will assume that the adjustment has not been messed about with. If the governor on the motor armature that presses against the underside of the square black speed control plate at the back has not flown apart then I would replace the small pcb (phase board) on the top under the back cover. One screw and 4 wires hold it on.

Posted on Jun 23, 2017

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

SOURCE:

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Posted on Jan 02, 2017

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defrankond

CJ C

  • 66 Answers

SOURCE: My Kitchenaid K5SS 300 watt standing mixer launches into the highest speed regardless of the speed ....

ok to answer both of your questions. the mixer needs a new speed selector switch. it sounds to me like the contacts are burnt out or worn out one. the motor is fine its just the motor isnt getting the right voltage from the switch. its either on or off or medium speed or no speed. either way you both have to replace the switches. you can get the parts and do it yourself at kitchenaid.com or your local appliance store should be able to get them for you to.

Posted on May 05, 2008

Anonymous

  • 16 Answers

SOURCE: mixer speed turned erratic!

I would recommend that you first check the Hall effect sensor which determines the speed.  I had this exact problem and I actually went out and bought another Hall sensor for about $13.  I replaced the original sensor and made sure that the connection between the sensor and control board was nice and snug. My blender worked as good as new! But I was curious to know if my original sensor was defective so I put it back in mixer and again made sure all of the connections were tight.  Guess what?  My original sensor also made my mixer work!  There was nothing wrong with my original Hall effect sensor except the connection between the control board and sensor was not adequate--unfortunately I didn't check the connections before I decided to buy another one. My guess is that the connection between the control board and the sensor probably loosens or comes undone over time from use and vibrations. 
1.  Download the mixer parts and diagrams from the Kitchenaid website to see what the Hall effect sensor looks like. BTW the part number is 9703312. 2.  You'll need a phillips head screwdriver to open up the mixer. 3.  Make sure that the connection between the control board and sensor is absolutely tight and snug. 4.  Also, make sure that the orientation of the sensor connection between the control board and sensor is correct. it's hard to know which way the sensor should be connected because the control board has three prongs and the sensor can attach facing up or facing down. If, after you've made the connections, the mixer still doesn't work.  Disconnect the sensor and reconnect it with the prongs facing the opposite direction and try it.  I actually found the right orientation through trial and error.  By going through this trial and error, I also had my Eureka moment when I realized that the original sensor probably would also work it were reconnected with correct orientation.   5.  This whole process probably takes less than 10-15 minutes to perform.  6.  Make sure you use common sense and unplug the mixer when making connections and such.

Posted on Dec 30, 2008

JonThibodeau

Jon Thibodeau

  • 4 Answers

SOURCE: Kitchen aid 300 watt counter mixer model ksm90

Here is a link to the instruction manual:

http://www.kitchenaid.com/assets/pdfs/product/ZUSECARE/KSM150PSOB_Use%20and%20Care.pdf

Quick summary:

Tilt back the head of your mixer. Look at the joint between the head/body of the mixer. A flat-head (standard) screw will now be visible. Turn this screw counter-clockwise to raise the attachments, clockwise to lower them. Don't turn the screw too much, it is pretty sensitive.

Posted on Jan 24, 2009

Anonymous

  • 12 Answers

SOURCE: Mixer does not function at

Remove the brushes. Two black screws, one on each side. Pay close attention to orientation. MUST INSERT THE SAME EXACT WAY! Use electrical contact cleaner. I said electrical contact cleaner, put the WD40 back in the drawer!!! Using electrical contact cleaner, clean the contacts. Now clean them again, now repeat two or three more times. Spray SOME, meaning a little, into each hole. Reassemble and try it out. If this does not fix the problem refer to the section on removing the cover to access the motor and gears. disassemble clean the motor's brush surface and the contacts. if you don't know what I'm talking about then stop and call a pro.
This is a very common reaccuring problem with these things. Especially when meat grinding or cookie doughing with it. If you move to replace, get a stronger model, like the 500 or the 600. No, I do not sit around repairing mixers all day. I just happen to know a lot about the ones my wife has destroyed. Some two or even three times. after a while it pays to go get the right equipement.

Posted on Mar 16, 2009

Anonymous

  • 135 Answers

SOURCE: KitchenAid 2671 onmly run Stir and Second at high speed

Hi. Goto kitchenaid.com and download the parts catalog for your mixer model, these drawings will assist you in the disassembly and reassembly of your mixer.

You'll need to replace the speed control in your mixer. This is a common problem. Be prepared to wait at least a month for your parts to arrive. Unplug your mixer before you open it up.

If you're still under warranty call kitchenaid!

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

Posted on Mar 21, 2009

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1 Answer

My mixer is flinging mixture all over the place, can anyone help?


You are running it too fast for whatever you are mixing.

You always need to start at slow speed until everything is incorporated, and the increase the speed if needed. If the recipe has you beating air into something, you stop at the speed that doesn't fling the mixture out.

You can also cover the top of the machine and bowl with a cloth, but that is seldom necessary.

I am a trade master chef by the way :>)

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Kitchenaid stand mixer KSM90EM turns off when going to the left on speeds 4 - 6. Makes a bit of noise at stir speed, but runs in time. Also noticed white dust powder in small amounts on the speed...


Get a Copy of the Repair Part List from Kitchenaid.com.
You need to adjust the mixer speeds:

Remove the screw holding the End Cover and locate the three screws from the Control Plate.
All three (2 top left and right, and 1 bottom) must be adjusted. Make sure that the Control
Plate is not damaged in any way, contacts are not charred or burnt,etc...

1. Loosen the lock nuts enough & Turn the 2 top screws clockwise until they cannot be turned
anymore. Leave the bottom screw alone for now.
2. Use a dab of white paint or paper whiteout to mark the positions of the Phillips screws.
3. Plug in your mixer and Set the speed selector to "Stir".
4. Turn each top screw One full turn couterclockwise (alternating between Left and Right)
Keep making one full turn at the time (for both left and right) until the motor starts running.
5. Put your hand near the Agitator shaft and allow it to brush your finger slightly. Use your
watch or clock and start counting the number of times the shaft touches your finger in
60 seconds. The correct count should be 60 RPM (Rounds Per Minute). If it is less
or more than 60, give each screw 1/4 turn counterclockwise or clockwise and start counting
again. Now tighten both lock nuts.
6. Set the speed selector to "6" and turn the bottom screw either clockwise or counterclockwise
to achieve a speed of 180 RPM.

For your reference, the planetary RPM's for the 5-qt. tilt-head Artisan Stand Mixer are as follows:
Stir speed - 60
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Speed 4 - 135
Speed 6 - 180
Speed 8 - 225
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Jul 30, 2011 | KitchenAid KSM90 Ultra Power Series Stand...

1 Answer

I bought the mixer used without hearing it run. When I turn it on the lower speeds I hear a buzzing sound. It's not in the mechanical gears it sounds more electrical to me. I have replaced the...


The KSM90 is very similar to the 5-qt. tilt-head Artisan Stand Mixer.
You need to adjust the mixer speeds. Obtain a copy of the KSM90 Repair Part List from Kitchenaid.com. Remove the screw holding the End Cover and locate the three screws from the Control Plate. All three (2 top left and right, and 1 bottom) must all be adjusted. 1. Loosen the lock nuts enough & Turn the 2 top screws clockwise until they cannot be turned
anymore. Leave the bottom screw alone for now.
2. Use a dab of white paint or paper whiteout to mark the positions of the Phillips screws.
3. Plug in your mixer and Set the speed selector to "Stir".
4. Turn each top screw One full turn couterclockwise (alternating between Left and Right)
Keep making one full turn at the time (for both left and right) until the motor starts running.
5. Put your hand near the Agitator shaft and allow it to brush your finger slightly. Use your
watch or clock and start counting the number of times the shaft touches your finger in
60 seconds. The correct count should be 60 RPM (Rounds Per Minute). If it is less
or more than 60, give each screw 1/4 turn counterclockwise or clockwise and start counting
again. Now tighten both lock nuts.
6. Set the speed selector to "6" and turn the bottom screw either clockwise or counterclockwise
to achieve a speed of 180 RPM.

For your reference, the planetary RPM's for the 5-qt. tilt-head Artisan Stand Mixer are as follows:
Stir speed - 60
Speed 2 - 95
Speed 4 - 135
Speed 6 - 180
Speed 8 - 225
Speed 10 - 280

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Firstly, I think you mean "flour".
Put in your ingredients. Cover the mixer, head and bowl, with a dishtowel. Turn on mixer to "stir" (or lowest speed). But! Mix only for 1 or 2 seconds. Repeat this, with bowl covered, until flour is mixed in enough not to fly out.
Happy baking!

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Kitchen Aid is 100% correct. The cause of the problem is age and lack of regular use, the oils in the gearbox grease separate from the solids over time and the oil then leaks out at the planetary and sometimes where the 2 case halves join under the silver trim band.
If you are up for a small job knock the chrome trim ring around the planetary off and clean it out and wipe around the area it covers. It is called a drip ring for good reason, you may find it full of oil.
The grease Kitchen Aid used in their mixers is Food Grade and it's harmless.

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I have a PDF file entitled "kitchenaid service manual" that I could send you that I got online and can't remember where. If so my email address is mass78337@mypacks.net Send me an email and I'll reply with the PDF enclosed. Otherwise try a google search of the above and you might be able to find it.

It's looks old but covers all the essentials including a wiring diagram

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Hi. Goto kitchenaid.com and download the parts catalog for your mixer model, these drawings will assist you in the disassembly and reassembly of your mixer.

You'll need to replace the speed control in your mixer. This is a common problem. Be prepared to wait at least a month for your parts to arrive. Unplug your mixer before you open it up.

If you're still under warranty call kitchenaid!

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

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If you can unplug the mixer and test resistance between leads of the selector switch. The resistance should vary from high to low as you move the selector from low to high. If cord and all else looks good and switch is bad replace the switch.

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