I have replaced the battery on reprogrammed the remotes with no luck.
Remote will not open garage door from outside.
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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.
When the liftmaster wall station is locked you will notice a blinking green light in the center of the large white push button.
Both remotes will open door from inside garage as will wall switch.
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.
These prevent the operation of the garage door opener with hand held remotes.
Try resetting the remote.
I purchased and installed a craftsman garage door opener model 139 53918d this week.
If the door opens when you press the button on the wall mounted control keypad but not when you use the remote you might have just pinpointed the source of the problem.
I have also checked to see that the antenna is hanging down.
Lock buttons are also known as vacation lock buttons.
The opener is working fine using the wall control however the remote controls only work within the garage and a few feet outside the garage.