If your coffee grinder is not turning on, make sure the grinder lid (part A) is locked into place.
Note: the chamber covers (part I) are used for storage.
View the full manual for the Pulse 2-in-1 Coffee Grinder (CCG-U021-KUS) here.
If you still have additional questions, please email us at support@cosori.com or call 1-888-402-1684. Our phone line is open Monday - Friday, 9:00 AM - 5:00 PM (PST). For the quickest assistance, please have your model number ready and provide a brief description of your experience.