Garage Door Sensor Stays Red

If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.

Garage door sensor stays red.

Garage door sensor is blinking red. Each sensor will usually have a light. Raise the garage door using the control button on the garage wall or the remote control unit from a vehicle. Linear garage door openers have a green light on the sending sensor and a green and red light on the receiving sensor.

These sensors are little black boxes found on either side of the bottom of the garage door. One will have a green light used to show that the units are powered up and the other will have a red light to show that there s no obstruction between the sensors and that they re seeing each other. A troubleshooting guide blinking sensors on a garage door usually aren t a good thing because they re often coupled with the garage door not working the way it should. For those who are unfamiliar with how garage door sensors work there are two sensors each positioned on a side.

One of the sensors sends an infra red beam to the other sensor. Inspect each sensor to make sure the green or red power indicator lights are. If any of these sensors should happen to get bumped or misaligned the infra red beam would be thrown off and the garage door won t go down. The red light on the receiving sensor glows bright red when the sensors are aligned properly.

The green lights let you know there is power going to the sensors.