Whether you possess a door in your garage that performs not entirely decrease when it is closed and it springs straight back up before also getting to the ground, the main culprit is usually a displaced door sensing unit. A door sensing unit that is actually certainly not placed effectively are going to most undoubtedly cause your garage door to do unwarrantable shows like not closing down one hundred%. To repair read more , merely position your door sensing units a little bit lower than your existing placement.