While you wait for answers, we may have found some information which could help you.
Click here for Kitchenaid Mixer ModelKitchen Aid - speed lever?
Blender lights flashing and smoking?
My kitchenaid professional series stand mixer won't turn on?
My Kitchenaid blender spindle has broken?
How to disassamble kitchenaid KSM90 mixer?
kitchen aid 550 professional burned up motor?