Tidy the tracks. Use a ladder and take a look inside the tracks. Make sure they are free of particles, as well as there is no rust. If it appears dirty, you could utilise the air compressor to blow it out. Making use of a degree, make sure they are straight, and also the vertical parts of the garage door are plumb. Clean them out with brake cleaner ($6) instead of a lubricating substance, which can cause the door to slide.