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?
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. Read More... Answered by AppliancePartsPros.com | Monday, December 2, 2019