Why doesn't water pour into the carafe?

I fill up the water receptacle with 10 cups of water. It heats up to the point of steaming. After more than half an hour almost none of the water has made it into the carafe. The water is hot and there is no leak. Why won’t the water move through the hose? I’ve run the self-clean and used water and vinegar solutions to remove any calcification. What now?