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.
Garage door remote not opening door.
Reconnect the garage door to the opener adjust the open travel adjustment and then open the door with the remote.
When the liftmaster wall station is locked you will notice a blinking green light in the center of the large white push button.
It ll then start the motor running that opens your garage door.
If the door opens with the wall switch a simple battery.
Quickly test the quality of your opener s wiring by following these steps.
You might be out of range.
Most modern garage door remotes transmit at 315 mhz.
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.
If something is blocking their view typically the lights will flash and the door will not close.
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.
The antenna on the motor could be damaged or blocked from the signal.
Take note of the location where the garage door is fully.
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You have a bad sensor or a bad wire to the sensor.
They are optically coupled to the electronics of the door opener.
I didn t think i d ever see this but i had to replace one of the sensor wires on a sensor recently.
To unlock the lock feature hold your finger on the lock button for 10 seconds the green light will stop blinking and become steady.
Make sure it is hanging down from the motor.
These prevent the operation of the garage door opener with hand held remotes.
When your garage door won t open with the remote there are few things that can cause this problem.
As with many such problems the most common problem is the simplest one the motor unit has been unplugged.
Try resetting the remote.
Modern remotes transmit a binary number to your garage door opener.
First disconnect the garage door opener from the door manually open the garage door to its fully open position.