If you find a small rusty section on the door, you can try scrubbing it off and then apply a special varnish for future protection. When it comes to rusty garage door parts, there is no much you can do about them. Steel parts will erode at some point and will need replacement.
While garage doors come with safety features, they may still be dangerous especially if mishandled or not operated properly. Moreover, you should not allow children to operate the garage door. Despite all the safety and emergency features, you should still be very careful with your garage door.
In some cases, it can be straightened with the use of appropriate tools. This can happen if the bending is minimal. If the bending angle is large or if there is damage, then replacement will be necessary. The replacement part should not cost much.
This is most probably due to a loose or worn out cable, according to the experience of our professionals. Check all cables carefully to identify the problematic one and have it replaced as soon as possible. If the issue is not with a cable, it may be with the springs.