If the garage door opens correctly but fails to close completely there may be one of three common causes.
Set stops on garage door opener.
When the garage door opener is first installed it is programmed to learn the fully open and fully closed position and then it stores it to memory.
A flathead screwdriver is all that is needed to make a limit adjustment on most garage door openers.
Repairing a garage door limit switch.
Set the step ladder under the garage door opener in your garage and use it to access the up and down limit switch adjustment screws located on the side of the garage door opener motor housing.
The close limit switch may need adjusting.
Do you have an older chain drive garage door opener and the motor no longer automatically stops when the door is at the fully open or closed position keeps running until the timer or thermal cutout stops it before you go to the extreme of replaci.
T his is a pretty uncommon problem but one that can happen after you ve first installed your garage door opener.
The limit adjustment settings control the points where the door will stop in its descent up or down.
Within 30 seconds of pressing the learn button press down on a button on the remote.
This is a safety feature that prevents accidents and also protects the opener from damaging.
This will send out a radio signal to the ceiling mounted motor unit.
When the opener is activated the screw rotates causing the nut to move until it reaches the switch.
Genie garage door openers are known for their dependability but if your system doesn t seem to be working quite right you can adjust the open and close limit and force settings to have it working again in just minutes.
Try making small adjustments.
Since then genie has worked hard to make their radio controlled residential garage door openers a household name.
If the door won t stay open to its full extent or doesn t close flush to the ground the travel control needs an adjustment.
Open up the case and look for a screw type track that moves when the opener runs.
Check power door lock the power door lock must be deactivated anytime you open the garage door.
Hold down a button on your remote garage door opener.
This feature prevents the motor inside the garage door opener from damaging.
This is related to the up limit switch.
Sometimes the limit switch is activated by the movement of a specially shaped nut traveling on this track.
Garage door won t close all the way.
Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening.
It s important to get this switch at just the right distance from the motor so that the door is able to close all the way but the motor also knows to stop running.