Question about KitchenAid Food Mixers
I replaced the worm gear on a Kitchenaid KSM90 Stand Mixer...was very happy that everything went back together, no leftover parts, everything seemingly in its place...but then, no power. I saw a post about the motor brushes but had never touched those. I checked them after the fact anyway and they appear to be in properly, with the concave face appearing to make proper contact. Any other ideas of what might have happened. Your help is greatly appreciated.
Remove the rear cap from the unit. Power comes in from the black wire with the white being common. Hold a voltmeter lead on the white and check for power on the black. Power goes across the bottom of the speed control unit via a buss bar. Check for power on the right side, I think it is a red wire (may be a white one). Power is taken into the motor via that wire, goes thru the windings and the brushes and then out the other brush wire and back to the board. Check for power on the return wire. If it is dead then either the windings in the motor are burned out or one of the brushes is dirty and needs to be cleaned and reseated prpperly [note there is one and only one way the brush goes in!!!! Install it incorrectly and the brush will not touch the commutator.
Try that and see if it runs after cleaning the brushes.
Posted on Apr 01, 2010
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Posted on Jan 02, 2017
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