How to fix vertical blinds not turning
Make the necessary adjustments.Spraying WD-40.Remove obstructions.Patch up noticeable holes.Remove the spacer chain.Unhook problem blind.Get the replacement blind.Check rotation.

Why are my vertical blinds not turning?

Slats which won’t rotate are a sign that something is wrong with your tilter mechanism. Take your blind off the window and lie it on a flat surface so you can look inside the headrail. If you have a chain pulley system, examine the chain control mechanism and make sure the chain hasn’t come off the sprocket wheel.