Remove the bell wire from the single button control station s terminals and operate the garage door opener from the remotes.
Garage door closes and immediately opens.
When your liftmaster garage door opener opens and closes by itself here are the troubleshooting tips you need to follow.
Below are three reasons why your garage door opens on its own and some quick fixes you can try.
As these wires short against the housing the electrical impulse causes the door opener to activate.
Close the garage door with the opener and watch it closely as it closes.
This is almost always the result of a dirty or obstructed safety feature.
The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again.
They are misaligned this is the most likely problem and the most common issue with garage door openers.
You will find that the door will only move an inch or so in the close direction and reverse.
Your garage door is programmed to travel a certain distance before it closes.
Open the garage door and watch it closely as it opens.
The problem is either due to a blocked path between the sensors dirty eyes loose wires at the sensors or at the motor head or just bad sensors.
Measure the height where the door stops while it is being opened.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
If the door closes while holding the button pressed you are likely having one of the following issues with your safety sensors.
Garage doors use radio frequencies to open and close.
Whether you re using the passcode entry the buttons inside the garage or your remote opener the openers and the garage door itself must be on the same frequency.
The sensors are dirty wipe lenses with a clean soft cloth.
Here s a rundown of some of the possible reasons this can be happening.
The solution is usually one or more of the following.
The measurement is used to reset the up limit switch on your garage door opener.
Disconnect the control station.
The transmitters remotes will not work to close the garage door.
Your travel down setting needs to be adjusted.
It goes partway down reverses direction and goes back up again.
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.
When the garage door opens about halfway or 5 feet from the ground and stops the up limit switch needs to be adjusted.
There may also be loose wire connections inside the button housing itself.