Question about KitchenAid KSM90 Ultra Power Series Stand Mixer
I am not sure why but all of a sudden, I can't turn the mixer on. It doesn't seem to be an electrical issue; the speed control switch just appears to be locked.
Thanks in advance for any help you can offer!
Well, I half fixed it thus far anyway.
I got the speed lever freed up - just by jiggiling it back 'n forth, standing from behind with the mixer sitting upright on my counter. I was surprised when it just clicked free. With a tiny flashlight, I could see that the lever mechanism worked from a sharp angle to move the bar which pushes the circuit board back, (which is on springs) which lets the contacts on the circuit board close up, to run. Pull the lever back to off and the contacts separate, breaking the electrical current.
I sprayed some DW-40 lubricant on the little gear inside where the speed lever joins up, and it freed up even more - works very smoothly now, pushing the circuit board back 'n forth nicely.
But now when I plug it in, nothing happens. Lever works fine, but no spark.
Maybe I should not have used DW-40 ?
Maybe I should have used alcohol spray instead ? Or just plain air ?
I may have disturbed the electrical contacts or dirtied something ?
It's hard to tell.
I'm going to let this dry out a bit with the back cover off and see what happens in the morning.
I'm beginning to think this model was made in China or something.
These things never died so easily in my parents day.
Posted on Nov 09, 2008
I just had the same problem and solved it. when the speed switch is moved from off to the first slow position, it allows 2 conacts to close on the switch mechanism at the back of the mixer, accessable by taking off the rear piece with one screw. as you face the back of the mixer with the back cover off, you will see the contacts on the inside right top of the switch mechanism. with the cord unplugged, work the control lever and you will see it open and close. mine got burned over time, probably from normal sparking, so i took a sharp knife and scraped off each contact and that did the trick. don't use sand paper or emory cloth, i am told, but you could probably use an automotive point file.
Posted on Jul 22, 2008
Unplug the appliance. Take it to a well ventilated area and spray some alcohol in the slot where the switch is while trying to move it. This must be done with the appliance unplugged and the appliance must be thourughly dry when you plug it in. Use canned air or if you have one a compressor.
Posted on Mar 26, 2008
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