My Miracle Mill that I paid 40 bucks for thirty years ago had stopped working, probably, five years ago; I finally decided to take it apart and see what was wrong, it just hummed.
Well upon opening I found the inside packed full of coffee grounds; the little cloth gasket that is supposed to stop that apparently did not, but I used to rinse it out with hot water and that may have ruined the gasket.
Cleaned it up as well as I could, plugged it in and it still just hummed, so I threw it away; makes me feel kind of bad as that was the first one I ever bought and thirty years ago, 40 dollars was a lot of money.
I ordered a new Secura Burr Grinder through Amazon (I have no love for Amazon but some times they are hard to beat) on sale with free shipping for 40 bucks with taxes.
I like the old one partly because it was small and easy to store; I have several of the round blade type but burr type are better if one wants to grind to a certain size.
Now, one, one blade one has never been used but the other is ten years old and still working which surprised me as I had one that went pffft in less than a year. (I checked on a cheap Krupp and reviewers said it was junk often lasting less than a month).