Doesn't actually turn off
I have a Kitchenaid mixer that's about 10 years old (before they went to plastic insides), and it no longer turns off. Sometimes when I plug it in, it is off, but often, it's already on, and to stop it completely, I have to either push back the speed lever or unplug it. I love this thing, and would love to know how to fix this problem. I'm figuring it's a worn out gear or such, but none of the websites I've found show how to fix this particular problem. Thanks for any help!