The easiest and first step i suggest is trying to sync your remote again.
How to fix a garage door opener remote not working.
Place the remote in another position in the car or test it after replacing the batteries by standing outside the car and pushing the open button.
Other issues could be a bad battery or even an led bulb causing interference.
Quickly test the quality of your opener s wiring by following these steps.
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Check the batteries the most common cause of garage door remote control failure are weak or dead batteries.
If it is within range but still does not work there are ways to fix it.
Check the receiver for power if the remote.
To reboot the opener unplug the unit from the wall for about 30 seconds and then plug it back in.
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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.
Simple but true the remote transmitter needs power to send a signal to your opener.
To do this with your remote all you need to do is remove the batteries for about 30 seconds.
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Unplug the device for a second time and reconnect the control wiring to the motor.
They re both small computers and sometimes the circuit boards in them need to be rebooted in order to work properly.
Reconnect your machine to power then clear its memory and reprogram all remote controls.