What to do when your KitchenAid stand mixer won't run at all
When your stand mixer doesn't run, the problem could be a lack of electrical power, broken wires, a failed motor or control problems.
First, check the outlet's GCFI breaker and reset it if it's tripped. If the GCFI is fine, see if the stand mixer runs when you plug it into an electrical outlet on a different circuit. If not, check the house circuit breaker for the dead outlet and reset if it tripped.
If the mixer won't work when plugged into a working electrical outlet, unplug the mixer and check the power cord. Replace the cord if it's cut or damaged.
If the power cord is intact, check the cord's wiring connections on the speed control plate or electronic control board. Reconnect any loose power cord wires and repair any broken power cord wires.
If the control wiring connections are okay, check the carbon motor brushes (with the mixer still unplugged). Replace both carbon brushes if either carbon brush is worn down shorter than 5/16-inch.
If the motor buzzes but doesn't spin, and the motor brushes are both okay, then you most likely need to replace the motor because the motor windings are bad.
If you haven't figured out why the mixer won't run after following these tips, other possible causes are a failed speed control plate, phase control board, or electronic control board, or a tripped motor overload switch.
How to fix your KitchenAid stand mixer when its motor sparks
Worn carbon motor brushes typically cause motor sparking when you're running the mixer.
Unplug the stand mixer and examine the motor brushes for wear. To remove a motor brush, use a screwdriver to unscrew the motor brush cap. Pull the cap and the carbon brush out. Measure the length of the carbon motor brush to determine its level of wear. Replace the carbon motor brushes if either brush is shorter than 5/16-inch because a carbon brush can cause sparks when it wears down below that length. Replace both carbon brushes at the same time to keep the motor running smoothly and efficiently.
