View liftmaster resources on this topic your logic board needs replaced.
Garage door close limit.
Garage door closes opens back up press the button on your remote to operate the garage door.
Open the garage door and watch it closely as it opens.
With these simple steps you will be able to tune up the limit switch so that your garage door recovers its optimal performance.
If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.
I ve been told they are cheap on all their models.
Garage door won t close all the way if the garage door opens correctly but fails to close completely there may be one of three common causes.
If it closes and then begins to open again you need to.
These limits need to be set properly to avoid damage to the garage door opener or garage door.
When the garage door opens about halfway or 5 feet from the.
Sometimes the fix can be as simple as replacing the batteries in the opener.
Garage doors sometimes seem to have a mind of their own often deciding when and how far they want to open or close.
Liftmaster provides a helpful resource that explains how to adjust a limit switch.
The contact metals for both the limit switches and light sockets are flimsy and tarnish very easily.
Resetting the limit switch will stop your garage door from behaving erratically.
Over time it may be necessary to adjust the switch to make the garage door close completely if it is not working properly.
The close limit switch may need adjusting.
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.
The limit switch contacts and the light sockets for that matter are made of very cheap materials on my 2003 chamberlain garage door opener.
Open and close the garage door.
A garage door limit switch is a device that helps you set the appropriate functionality of a garage door.
The open and close limit on garage door openers are the settings that control how far your garage door opens and closes when using the wall button or remote to open and close the garage door.