Blinds that won't lift may have a worn-out spring mechanism or one that is locked in place. Remove the blinds from the window and place them on a flat surface. Look for the pin that controls the tension and carefully twist it clockwise to increase tension.
The first thing to try is to take hold of the bottom of the blind by the bar, and gently pull it downwards until the fabric has un-rolled to its full extent. If this works, then just re-roll the blind back up again slowly and gently, while taking care to ensure that the fabric rolls evenly and not on a wonk once more.
If the shade won't stay up, the spring is too loose. Pull the shade down enough to turn the roller a few times; if it's extremely loose, pull it down about halfway. Lift the flat-pin end of the roller out of its bracket. Then roll the shade up by hand, keeping it tightly rolled.
Most likely the chain mechanism, responsible for raising the fabric, or the roller (the material is wound onto it) is damaged. There may also be damage to the fastening system, guide or cassette.
Remove the blinds from the window and place them on a flat surface. Look for the pin that controls the tension and carefully twist it clockwise to increase tension. This might require pliers if the pin is recessed or difficult to grip. Once tension is adjusted, remount the blinds and test the lift function.
The most common reason for slats getting stuck and unable to be lowered or raised is that their cord is trapped in its lock mechanism. To release it, raise the cord until it's level with the headrail at the top of your blinds, and then gently tug on it. This should release the lock mechanism and set the cord-free.
Pull on the frayed lift cord until the slats are drawn together. Cut the cord at the fray and pull the discarded piece (with the knotted end) out through the bottom bar. Splice the new cord to the old by hot-gluing the tips together and rolling them up tightly in a 3-in. long strip of plastic electrical tape.
Check that the brackets are level and even. Roller shades must be mounted absolutely level to operate correctly. If the brackets are level and tight, it could be the shade material itself causing this. To correct it, unroll the shade all the way until you can see the exposed roller tube.
If you hit resistance, bring the fabric towards you slightly and give it a gentle tug. This should release any tighter springs and allow you to adjust the fabric once again. You can also gently move the fabric from side to side, rocking it until the springs begin to work again.
Common reasons include dead batteries, signal interference, and physical obstructions.
Check the Power Supply: Ensure all cables are securely connected. Replace Batteries: Low or dead batteries in the remote or blinds can stop them from working. Check for Signal Interference: Obstacles or other devices may disrupt the remote's signal. Inspect Motor and Components: Damage or wear can cause motor issues.
Cellular shades and blinds can usually be fixed by using the 45-degree method, in which you lower the shade fully and then raise it toward you on an angle. If this doesn't work, the motor likely needs to be replaced, or the internal cords are tangled and in need of replacing.
To lower the shade: grip the bottom rail handle and slowly pull straight down. To raise the shade, grip the bottom rail handle and push up slowly. Always keep the bottom rail level.