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Customer Questions and Answers for Stand Mixer Phase Control Board by Whirlpool

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Manufacturer Part
4.89 (64)
By: Whirlpool
Part Number: OEM18058740
Manufacturer Part Number: WPW10325124

Fix a mixer that won't start, runs constantly, or has only one speed. This phase control board regulates motor speed. Easy DIY repair with video guide.

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Questions & Answers

For Whirlpool Stand Mixer Phase Control Board (Part Number: OEM18058740)

Dj for Model Number K45SSWH

My 13 month old KitchenAid mixer will not turn on. I replaced the control board and phase board, but it still won't turn on. I verified power to the control board. I have no voltage to the motor with either the original phase or replaced phase board. I have verified the brushes are install correctly. What else do I need to check? Can I connect the line voltage directly to the motor to verify the motor is working? Troubleshooting suggestions are greatly appreciated.

1 Answer

Keith, If there is no power on the red wire then this would be a faulty phase control board that would need to be replaced.

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1 Answer

Daniel, It sounds like the phase board may need to be adjusted or replaced if the adjustment does not work. It would also be recommended to first check the motor brushes to make sure that they are not worn out.

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1 Answer

John, Check the motor brushes as they may be installed wrong or they may be worn causing the unit to not run.

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Ksm90 for Model Number KSM90WH

KSM90 Mixer will not turn on at any speed. Used meter to measure input voltage- got 120VAC between the black and white (lower left) leads on the control plate. I also measured the voltage between the red and white leads on the right hand side of the control plate. Also got 120VAC when “on” at any speed setting. When in the off position this reads about 2.2VAC. I assume this is the voltage going to the motor? The brushes are about 11/16 inches long. The unit worked one day, next day plugged it in and it wouldn’t work. No bad smells. Any suggestions on what’s wrong?

1 Answer

KSM90, If you are receiving 120 Vac on the red and white wire to the motor then the control plate is faulty and would need to be replaced. For the issue of the motor not running, make sure that the brushes are in place properly, if they are then this will be an issue with the motor winding that is the most likely issue.

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Elizabeth for Model Number KSM90

My kitchenaid ksm90 mixer would not power on after i dusted flour off of the speed control plate. I tried uninstalling and reinstalling it. There is no power or motor sounds at all. So i purchased a new phase control board as well as a new speed control plate and replaced them both (KitchenAid 4162402 and KitchenAid Mixer Phase Control Board 9706595). I also checked the voltage coming into the power cord at the board (normal). The unit will NOT power on at all, no matter how i adjust the screws. Any ideas?

1 Answer

Elizabeth, with the unit unplugged, the end cover will need to be removed and the control plate contacts inspected for movement when the control speed selector is moved from the off position to any of the speeds. If there is no movement, the assembly will need to be checked to ensure that the speed arm and spring are secured fully. From there, the unit will need to be inspected for any loose wires as it is possible one may have come loose from a brush while the repairs were occurring.

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1 Answer

Hello Mariana, You might be able to locate a power converter by contacting a travel agency or the like. Changing the parts on the appliance would cost more than replacing the complete appliance. Thank you for your patience and understanding in this matter.

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Yaakov for Model Number 5ksm150pseac

Hi! I have a 5ksm150pseac kitchenaid mixer (220 VOLT) and after a while of cluncking around around it finally stopped turning although by the sound of it the motor was still running. I opened it and found that the worm gear was shot, replaced it but now nothing's doing. Tested it with a multimeter to find continuous cycle, and can't a current through the small square board that has 4 wires attached to it (I do get reading through the motor and the rest). Does this show me the problem, or is there a specific combination to check it, and if so what's this part called? Thanks!

1 Answer

Yaakov, For this issue the phase control board would be the issue with the unit if there is no power coming from it but getting power to it.

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