Change springs on garage door

IF you are saying the garage door comes down and wont retract see page 12 and 16 http://vartutechnika.lt/assets/PDF_instrukcijos/pakeliami/B7-21230L.pdf

You can call a local garage door repair shop to get replacements. They should have springs that will work with your garage door depending on if the door is for a single-car or double-car garage, or if the door is made out of wood versus steel. Usually both of your springs will have to be replaced for safety reasons. You should not replace the spring yourself unless you are a trained professional with the proper equipment because the springs are very dangerous and cause serious injury.

The torsion springs might need adjustment.

Pull emergency release, and manually lift door to half-open position.

When you release the door, it should stay in place.
If it almost "slams" down, the springs are not doing their job to "balance" the weight of the door itself.
The opener isn't designed to overcome the weight of the unsupported (no spring assist) door.

Over time, the springs take a "set", and might need a readjustment
THIS IS A JOB FOR PROFESSIONALS!!!
The springs are under tremendous pressure loading, and can even kill someone if they do not know what they are doing!

Does it make a noise? Did it run before you changed the springs? Did you replace springs on opener or on the door? What adjustment screws are you looking for? Do you think they went out of adjustment when you changed the springs?

Here are instructions for replacing the spring. You can call any local garage door company and they will sell you the springs. I absolutely don't recommend this job for a DIY'er. It is dangerous.

http://ddmgaragedoors.com/diy-instructions/replace-garage-door-torsion-springs.php

You can try going to www.managemylife.com. They should be able to help you. It is a Sears website.

Have someone out to fix the spring.
DON"T fix it yourself. These things are very dangerous and can cut off fingers or worse. Just Google replacing garage door springs to read up and the danger replacing these can be.
Have someone who know what they are doing fix it.

It sounds like the spring is dislocated. May just need putting bck in the right place.

It takes another set of hands to stretch and hold the spring in place at the 3 and 9 o'clock positions. With the spring held in place in this manner, pull the remaining portion of the spring straight down at the 6 o'clock position with one hand and hold it while working the rest of the spring into the groove with the other hand. This is the toughest part of replacing these door seals, but it works better with two people. Please let me know if you need further assistance. I hope this helps you.