In other words even when the garage door is fully open some of its lower edge should be visible in the garage door opening and the lowest section of the garage door should be partly vertical so the entire garage door does not sit flat on the rails.
Garage door drifts down.
If that point is more than four feet or less than three feet above the ground you will need to balance the door.
After the opener reaches upper limit and shuts off it allows the door to drift down a couple of inches.
On 5 10 16 at 12 35 pm to sicboy.
But when the door begins to descend all on its own the problem may point to the opener s logic board or the circuitry inside the motor unit itself.
If it falls to the floor you may have a broken balance spring on the door frame.
The cables experience wear and tear after years of helping to control the movement of the door and the tension of the springs.
The one that is not is not strong enough to hold door up on its own but strong enough to still open the door.
Probably have 2 springs above door and one of them is broken.
Adjusting the position of the track.
If the door hangs crooked it needs adjusting.
Give the door a few test closes and look for gaps around the door.
The following is a guide of how to adjust the tracks to unbind it.
Move the garage door up and down until you find a place where the door stays suspended when you let go.
Use a flat head screwdriver to tighten or loosen the hinge screws at the top of the.
Place a level on all three surfaces of the hinge side of the door and check.
Typically when the door is in the up position the bottom of it should be even with or slightly lower than the upper frame of the garage door.
Those inches are needed to get my truck through.
Use a screwdriver to loosen the screws that are in the tracks to secure it to the garage door frame.
This model looks like it is new and i would first check the balance of the door by closing the door and releasing it from the opener and lifting the door by hand to waist lever and releasing it to see if it stays in that position or if it slams to the floor.
If the door is not plumb you may have to adjust the hinge in its mortise.
Plumb means straight up and down.
Snapped cables should be professionally replaced before you try to use the door again.
When a garage door descends on command but then immediately reverses itself the problem is usually with the sensor eyes along the side tracks or with the door s wheels binding in their tracks.
Loosening the screws on the track.
A garage door is considered bound when it s difficult or impossible to move up and down.