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 red light off.
Inspect each sensor to make sure the green or red power indicator lights are illuminated.
Close the door to check whether it remains open an indication that the sensors are functioning well.
When the infra red sensors are malfunctioning usually one of the sensor lights will be blinking.
This is a nice feature because if the light is blinking then you know you have power going to the receiving sensor all you have to do is align them.
Yellow light instead of red.
Here s how to tell if garage door sensor is bad five things to check.
Other signs include flashing garage door opener lights missing sensor light or flashing sensor lights.
Remove plants garden tools animals from the doorway.
If the red source led is blinking twice with the sensor light lit check the door sensor for obstruction and make sure nothing is obstructing the source of the beam.
Transmitter led green solid receiver led red solid.
The good news is a yellow light is your garage door sensor s descending line.
If you see that the sender sensor is not yellow and the receiver sensor is not green then this means that your sensors are probably off.
Does your garage door sensor have a yellow light that s making you worry.
Therefore this yellow light should always.
Whether you are cleaning your garage door checking the sensors or adjusting the height it is important to maintain your garage door.
Raise the garage door using the control button on the garage wall or the remote control unit from a vehicle.
If the door closes down check for the objects that may be present near the garage door.
The problem is either due to a blocked path between the sensors dirty eyes loose wires at the sensors or at the motor head or just bad sensors.
When genie safety sensors are misaligned the red receiving sensor light will blink.
If the source led is blinking twice and the sensor light is out check the wiring or call customer service see the resources section.
Perhaps you fear the sensor might be low on batteries or worse nearing the end of its lifespan.
If you own a garage door opener by lift master chamberlain or craftsman you ll notice that the sender sensor will usually shine a yellow light and the receiver sensor will usually shine a green light.