How Does A Remote Garage Door Opener Work

If you purchase the remote for your particular brand of garage door programming is usually simple.

How does a remote garage door opener work.

Once the radio receiver on the opener gets the signal from the remote transmitter it activates a relay that starts the motor running. You press hold and release the buttons in the pattern specified in the instructions and the. The fob that you carry on your keychain or use to open the garage door is actually a small radio transmitter. When you push the button on your garage door opener remote or inside your garage the transmitter sends a code to the receiver which is tuned to the same frequency as the transmitter.

When you push a button on the fob you turn on the transmitter and it sends a code to the receiver either in the car or in the garage. Try using your remote to open or close your door to determine if the reprogramming was successful. Then within 30 seconds hold the button on your remote for three seconds or until garage door opener s lights flash or the led light on your opener blinks. When garage door remotes and openers first came out they were simple radio transmitters and receivers so any garage door remote could open any garage door.

For security purposes modern operating systems also include a controller chip that creates a hopping code or rolling code which means the code used is different each time the door opens or closes. When you click your garage door remote it sends a signal to the opener. The remote sends a code to the receiver. The garage door opener s built in radio receiver obtains the signal verifies if the security code is correct and then operates the motor.

It opens the door and creates a new code for the next time the door opens. But first here is how it works in a few sentences.