There are several reasons why your garage door opener is doing this.
Garage door closing by pressing button continously.
These garage door safety sensors are located close to the ground and are responsive to any potential obstructions.
So if you have to do this to close the door it means the sensor is malfunctioning.
Having your garage door light blink continuously is not only annoying it s also a sign that there is something wrong with the mechanism.
The symptom of this is a garage door that is in constant motion opening fully then immediately descending only to start the same cycle again.
Examine the garage door opener button.
You are overriding the infrared beam sensor when you hold down the wall button continuously while the garage door is closing.
Any transmitter like a handheld clicker or outdoor keypad will also not work to close the door if there is a problem with the sensor.
If you try to open your door using a remote while the lock system is engaged you ll notice that the garage door light will begin blinking continuously.
It all depends on the configuration but you likely have a button that activates the door operator.
Simple but true the remote transmitter needs power to send a signal to your opener.
If you own a new garage door opener that comes with a locking feature it s possible someone may have accidentally locked your garage door by pressing the lock button.
The button can easily get dirty and stuck in the pushed.
If the wires appear to be in good shape next look at the control button mounted near your side entry door.
The door operator button is similar to a door bell.
If it is old or dirty the button may stick.
If pressing the button on your garage door s remote control doesn t work check the batteries first.
Tuesday june 26 2018.
The locking feature is meant to prevent garage door remotes from opening your door.
Only the button on the wall control or manual keypad inputs will open it.