To be sure that the batteries are always good use name brand quality batteries instead of discount brands.
Garage door remote control signal issue.
It flashes because it s hearing the radio signal from your transmitter remote.
If pressing the button on your garage door s remote control doesn t work check the batteries first.
On most of the newer garage door openers there is a little led light next to the learn button on the back of the opener.
Many different electronic devices can cause radio frequency interference which will reduce the range of the garage door opener remote or cause it to work intermittently.
After placing fresh batteries in your remote if the door still won t respond then the signal between the remote and opener transmitter may be disrupted.
However if it doesn t then you may need to replace the remote altogether.
Some garage doors have infrared sensors that shoot an invisible beam across the door.
Two common causes for a signal interruption is if your remote is out of range or the opener receiving antennae is damaged.
Step by step process of elimination is the best way to determine what is causing the decreased range on the garage door opener remote.
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 beambeing sent by the remote.
The most common cause of garage door remote control failure are weak or dead batteries.
Simple but true the remote transmitter needs power to send a signal to your opener.
If the remote works from inside the garage but not from the outside then most likely the antenna wireon the garage door opener itself may be damaged broken or not in visible range.
Most likely this will resolve the situation.
If they are working correctly the problem might be because of the safety sensors.
Try replacing the batteries in the remote and trying again.
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.
In order for the remote to be able to open the garage door the signal from the radio transmitter must be strong enough to reach the radio receiver in the garage.