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smithron99  
#1 Posted : Friday, April 7, 2023 2:05:43 PM(UTC)
smithron99

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Canada
Location: Ontario

Mixer was on stir. Suddenly sped up, settled back down for a second, then sped up again. After that it was essentially only 'off' or 'fast'.

I order replacement speed control plate and governor, and replaced both.

With the new parts, it tends to pulse on stir, and won't go below - say - 80-100 rpm. If I continue to tighten the speed control screws, it eventually just stops, but never gets down to 60 rpm.

I tried letting it run on a higher speed, and smelled something.

Took the new controller plate off, and I can see that the governor has been boring into it, removing material from both the soft white and the hard black plastic. Stumped
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smithron99  
#2 Posted : Friday, April 7, 2023 3:34:43 PM(UTC)
smithron99

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I'm going to try replacing the phase control board
smithron99  
#3 Posted : Monday, April 17, 2023 6:07:18 PM(UTC)
smithron99

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Phase control board was it. Back in business!
Guest  
#4 Posted : Monday, January 15, 2024 6:22:29 PM(UTC)
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What size is my kitchenaid model 4ksm90psob?
сharlie  
#5 Posted : Monday, May 20, 2024 5:05:37 AM(UTC)
сharlie

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The KitchenAid model 4KSM90PSOB is a 4.5-quart stand mixer
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