Delonghi Magnifica espresso machine. Suddenly stopped working today when the grinder wouldn't spin and was making an awful noise. Open heart surgery revealed this piece between the grinder and washer/nut. I thought
Troubleshooting Tips for DeLonghi Machine Making Strange Noises - Best Espresso Coffee
DeLonghi Coffee Machine Troubleshooting: The Infuser is Stuck | Crema Coffee Garage Australia