If you have a laser level you can use it instead of a string to align your garage door.
How do i fix my garage door sensor.
Once your garage door is secure pull down on the manual release cord which should be red and located next to the garage door motor.
Disconnect the emergency release cord.
The small light on each sensor should be lit up when nothing is between them.
If pressing the button on your garage door s remote control doesn t work check the batteries first.
If they re turned on in both the sensors then there is no issue with the power supply.
Look for small led lights on the sensors.
Sensor power reconnect the sensor to its power supply a common cause of a malfunctioning garage door sensor is lack of power supply.
Electric garage door openers are a great innovation but as is the case with every electric electronic component things can go bad and malfunction.
Align or replace the safety sensor if the door goes up but goes down only when you hold down the wall switch check to see that the safety sensors are in alignment.
Remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag.
It s possible you are out of range of the antenna inside the garage.
Make sure that the antenna on the motor unit is hanging downward and is not damaged in any way.
Modern garage door openers are essentially small radios that operate at about 315mh and a few feet of extra distance can affect the signal.
Move closer to the door.
If you have an automatic garage door then you have to disconnect the door sensors.
Door sensors do go bad so if no light is showing at all you may need to replace them.
In this case you will set up the level aligned with one sensor then adjust the opposite sensor until the beam of your laser level is hitting the sensor.
Proper height for a garage door sensor is 4 to 6 inches 10 2 to 15 2 cm.
Cycle the garage door through the opening and closing actions using the control on the garage wall.
To disable your garage door sensor first make sure your garage door is closed or propped up with 2 by 4s just in case it comes crashing down when it s put into manual mode.
Simple but true the remote transmitter needs power to send a signal to your opener.
The first thing you need to do is stop the power supply for the garage door.