Rank: Member
Groups: Registered
Joined: 4/7/2023(UTC) Posts: 0  Location: Ontario
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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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Rank: Member
Groups: Registered
Joined: 4/7/2023(UTC) Posts: 0 Location: Ontario
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I'm going to try replacing the phase control board
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Rank: Member
Groups: Registered
Joined: 4/7/2023(UTC) Posts: 0 Location: Ontario
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Phase control board was it. Back in business!
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Rank: Guest
Groups: Registered
Joined: 8/10/2018(UTC) Posts: 0  Location: 99556 Was thanked: 4 time(s) in 4 post(s)
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What size is my kitchenaid model 4ksm90psob?
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Rank: Member
Groups: Registered
Joined: 5/20/2024(UTC) Posts: 0  Location: Chicago
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The KitchenAid model 4KSM90PSOB is a 4.5-quart stand mixer
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