Many times the door rollers will come off the upper track.
Shower door needs adjustment.
Since they do not have a frame the track or hinges must be attached directly to the glass or at least appear to be.
This should fix most of the hinged door issues.
Frameless shower doors consist of tempered glass with two or three hinges at one side.
If you notice leaks at the sides or bottom of the door there s a good chance the door is out of alignment.
Protect the shower or tub from scratches with a drop cloth.
Unscrew the guide at the lower edge of the sliding door.
If you need to lift or lower your hinged shower door you can move the rollers in the top to allow the door to swing higher into the opening.
If you need to lower the door move the hinge down to adjust the shower door to the right height.
Actually the hardware usually clamps the door when you tighten the screws and a rubber gasket between the hardware and the door prevents damage.
Look at the rollers from inside of the shower.
If your shower has a level adjustment bar like this one you will want to watch this first.
Learn the steps needed to fix it and get it running smoothly again.
Determine the need for adjustment.
Frameless glass shower doors can hang from an overhead track or from side hinges.