Question about KitchenAid KSM90 Ultra Power Series Stand Mixer

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Hi dickgadsby,

Please try to move the lever slightly up or down while moving it forward to see if this will free the lever. If not and still lever can't be moved this means that you need to remove the top end assembly to check and replace parts. If you don't have the parts list manual you can download it from Kitchenaid's webiste. Pages 6 & 7 provides an exploded view for the disassembly and reassembly of your mixer. Check Illus Nos. 1, 2, 3, 4, which are Pivot screw, Spring washer, Switch lever and stud, and Control plate spring. Once you have disassembled your machine inspect the pivot screw to see if it's loose. If loose, tighten. Inspect the rest of the assembly to determine if something else hasn't broken or gotten out of alignment. If something has broken, you can order replacement parts and install them yourself. You may order parts from or Go to this link for it provides instructions on how to disassemble your machine.

Hope it helps.

Thank yu for using FixYa.

Posted on May 21, 2011

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The unit will not power on. There is no noise when the the speed selector is in the on position. The electric socket works, the beater can be turned by hand, but the unit won't power on

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1 Answer

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Referring to:

It may be a mechanical problem and it may be a problem with the small circuit board inside the machine. In order to inspect the mechanism, remove screw #23 and then remove the cover #24. Look for a spring item #4, which will be attached to the bottom of the control plate assembly, item #28. If it is not there then the plate will not return to the slow position.

Try moving the speed control knob abd watch the action of the speed control plate. It should move freely in and out. If not then check for binding and/or loose screws.

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