Question about KitchenAid KSM90 Ultra Power Series Stand Mixer

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Speed of mixer

While mixing candy I moved speed lever to desired speed and the motor speed slowly dies to the machine not mixing. Have to move lever back and forth to finish batter

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Does the motor still run or does it slowly start to get less loud? or is the beater assembly that dosnt work? two different issues. if the motor runs but dosnt beat then its the planitary gears that are ground out and need replacing. if the motor slowly dies out then you need to replace the motor.

Posted on May 05, 2008


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Posted on Jan 02, 2017


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Shelly, usually this can be repaired without needing ANY parts! Its pretty simple but you do have to tear apart the mixer. Here is a link to the service manual:

99% of the time you are dealing with a loose screw. So take the mixer apart, once you have done that you will find the speed control lever with knob has a screw that holds it in place and in contact with the spring. That screw can work loose and if not all the way tightened will allow your mixer to pop back into speed one. Simply tighten the screw and see if the mixer will operate correctly.

If the speed lever is working through all 10 speeds correctly re-assemble the mixer. If it does not correct the problem you will want to buy the speed control lever kit.
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Good Morning,

There is a spring inside your mixer attached to the speed control switch and speed control arm, the spring can sometimes get caught on the slide bar that is just below it inside the mixer. The other reason is that the speed control switch plate in the rear of the machine (that the spring attaches to) vibrates the three speed adjustment screws out or in and the spring will pull the speed switch (control arm that you use to control mixing speed when using the mixer) back to the stir position after you try to turn the mixer off.

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The Speed Control lever is linked to the Speed Link mechanism, which in turn moves the
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