Okay now that you know some of the common signs of garage door sensor malfunction you re ready for the next step troubleshooting.
Garage door sensor wont stop blinking.
If your garage door opener is still blinking try realigning the safety reversing.
This feature prevents the motor inside the garage door opener from damaging.
Garage door sensors are safety devices that prevent the door from closing on people pets or objects in the doorway.
Otherwise the light is generally on steady green instead.
The purpose of the safety sensors located on the bottom corners of your garage door is to automatically reverse your door if they detect motion underneath the door.
Check power door lock.
Look at both the garage door sensors.
Once you push this button the light on the garage door opener will flash twice.
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The power door lock must be deactivated anytime you open the garage door.
Often when there s a blinking green light the door also won t operate with the remote.
If one of the leds is blinking the sensors need to be realigned.
If this doesn t fix your problem then the problem is more than likely the safety reversing sensors.
Here s how to tell if garage door sensor is bad five things to check.
Blinking green sensors generally mean that the door has detected a fault or a safety issue so it s a way of letting a homeowner know there s a problem.
It can be quite easy to find the solutions needed to repair your garage opener.
Your garage door opener stopped operating as it should.
In my article about garage door opener troubleshooting i help you to correct the most common problems without having to consult either your owner s manual or an expensive professional.
Liftmaster garage door openers are designed to stop if it senses a resistance or an obstruction while opening.
If that s not the case then the door won t open fully.
Whether it won t open won t close or only responds intermittently there s a lot of frustration in a garage door that just won t do what it should.
Once you see the double flash press the control button on the remote control.
Other signs include flashing garage door opener lights missing sensor light or flashing sensor lights.
The sensors are located above the.
If the opener cannot detect that the safety sensors are properly working or connected then the opener lights will flash and the door will refuse to close.