You should find two plastic screw heads or knobs on the back side or bottom of the housing.
Garage door stays closed a few inches.
View liftmaster resources on this topic your logic board needs replaced.
Test the garage door to see if it stays closed.
If your garage door isn t staying open or staying closed you may need to adjust your limit switch which requires only a flathead screwdriver.
When i press the button to close the garage door the motor turns on and the door starts to shut but will not go down to the garage floor all the way.
Garage door will not close all the way leaves gap at bottom my garage door will not fully close all the way there is about a once inch 1 gap at the bottom.
It s a common scene around the phoenix area when temperatures hover at obscenely hot levels.
When this happens your garage door will only close by holding down on the wall button or wall console until the door fully closes.
Door starts up but stops before it is completely open.
You push the button to close the garage door.
In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor.
Be sure the garage door opener and springs are in good repair properly lubricated adjusted and balanced.
You will find that the door will only move an inch or so in the close direction and reverse.
This is almost always the result of a dirty or obstructed safety feature.
Check the opening closing force controls.
It goes partway down reverses direction and goes back up again.
Check the closing force control.
You can usually tell if a torsion spring is broken by looking at it.
Check the garage door for binding.
The transmitters remotes will not work to close the garage door.
Some people think opening the door a smidge will help.
Liftmaster provides a helpful resource that explains how to adjust a limit switch.
Garage doors that are cracked open a few inches.
Start by rotating the down limit screw or knob one complete turn in the minus direction.
A broken torsion spring will also cause the door to slam closed instead of closing gently.
If the door starts to open but won t move more than a few inches the torsion spring may be broken.