I have a set of doors like these below. Has the built in blinds.
They're only about 1/2 year old or so, maybe a little more.
Both of them have started having a problem raising the blinds. As I raise them UP by puling the plastic handle on the right side of the window pane down, I get about 1/2 way and it releases..the blinds fall back to the bottom.
It apparently is a magnetic setup in that lil plastic slider.
I've cleaned the windows but nothing is helping.
It has to be some sort of Windex or something we've put on the windows, because both are doing the same thing and they are not connected.
It's almost like the shade load gets too heavy for that magnet and it drops them.