Can't lower after cleaning. Pushed up and won't lower back!

I'm sorry that you are having this issue with your blind. The blinds can be cleaned while lowered by dusting or using a soft, lightly damped cloth or sponge to wipe over the slats. This won't affect their functionality. Cleaning in other ways may affect the blinds performance. I apologize for any inconvenience that may have caused. - Kimberly