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So mine did the same thing. Tried resetting, making sure the upper wheel was spinning freely and cleaned the machine. Then in the process of cleaning I noticed the lower cover over the reader was high and not down. I got a knife, pushed it back down and reset the machine. It then allowed me to make coffee again. But just in case, I ran a cleaning cycle then made a cup of coffee. Works like normal again. Will be keeping an eye on that lower sleeve.