You might be out of range.
Garage door opener wont open with remote.
When the liftmaster wall station is locked you will notice a blinking green light in the center of the large white push button.
Unplug the opener and disconnect the two wires from the motor reconnect your machine to power then clear its memory and reprogram all remote controls unplug the device for a second time and reconnect the control wiring to.
These prevent the operation of the garage door opener with hand held remotes.
To unlock the lock feature hold your finger on the lock button for 10 seconds the green light will stop blinking and become steady.
Replacing the remote s batteries was a smart first step but since.
The garage door remote won t work but the wall switch does check the batteries and electrical connections in the remote to make sure they are working correctly.
If your garage door won t open with remote activation the problem could be the result of an expired battery in your remote transmitter.
Some garage doors have infrared sensors that shoot an invisible beam across the door.
If they are working correctly the problem might be because of the safety sensors.
Quickly test the quality of your opener s wiring by following these steps.
Check to be sure the antenna is attached and if it is not hanging down from the unit move the antenna so it can catch the beam being sent by the remote.
Garage door openers are great when they work which is most of the time.
The antenna on the motor could be damaged or blocked from the signal.
Make sure it is hanging down from the motor.
If the door opens with the wall switch a simple battery.
When your garage door won t open with the remote there are few things that can cause this problem.
The first thing to check is the transmission receiver on the inside wall of your garage.
If the remote works from inside the garage but not from the outside then most likely the antenna wire on the garage door opener itself may be damaged broken or not in visible range.