Identify the switches by the up or open.
How to lower a garage door.
Look at the door rollers on each side of the door.
These may be on the side of the box but are usually at the rear.
If they are not you will need to lower the door slowly by hand.
Set up your step ladder beneath the garage door opener being certain the ladder is level and stable.
If the bottom roller is out on one side bend the outside edge of the track with a pair of vise grips and push the roller into the track before lowering the door.
For optimal results make sure that you measure the distance from the garage floor to the garage door as close to the track and bottom bracket as possible.
2 place a c clamp into the track opposite the side.
Move the garage door up and down until you find a place where the door stays suspended when you let go.
All rollers should be inside the door track.
Look for two limit adjustment screws.
Raise the garage door then disconnect the electric opener s power cord from the electrical outlet.
How to adjust a garage door to close completely.
Use a scrap 2 by 4 to prop it 3 or 4 inches off the ground to make removing the bottom panel easier.
If you wish for the door opening height to increase you will.
Locate the limit adjustments screws located on the side of the opener.
Attach a couple of vise clamps to the garage door tracks just below the bearings for the second panel.
Carefully lower the door.
How to adjust garage door height step 1.
Place a stepladder beneath the box portion of the garage door opener.
How to level your garage door using the form below enter the size of the gap in inches under your garage door.
Have a helper steady the ladder.