Any electrical device can be the source of the problem.
Garage door opener weak signal.
Oftentimes when your garage door opener remote stops working it is because the remote transmitter has lost its signal with the motor.
Anyone who is familiar with automatic openers may realize the remote doesn t.
Troubleshooting a lost signal on your remote is as easy as resetting the old signal on the motor opener and equipping your transmitters with new signals.
Major brand names like chamberlain liftmaster craftsman and genie have come out with light bulb recommendations.
If the range improves then the interference is coming from a device in the garage.
Move closer to the door.
Modern garage door openers are essentially small radios that operate at about 315mh and a few feet of extra distance can affect the signal.
It s possible you are out of range of the antenna inside the garage.
It flashes because it s hearing the radio signal from your transmitter remote.
Make sure that the antenna on the motor unit is hanging downward and is not damaged in any way.
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.
If you have recently changed any lighting around your opener and noticed a weakening signal chances are the light bulbs are the cause.
The remote control unit for a garage door opener works by transmitting a radio signal to the unit inside the garage.
If you watch that little light while you push the button on your remote you will see it flash.