If you still haven t identified the problem or if you want to test the sensor wires themselves remove the sensors from the brackets.
Safety sensors on garage door not working.
Ensure that the door is closed if possible.
A common cause of a malfunctioning garage door sensor is lack of power supply.
Remove the wires from the wire nuts or cut the sensor wires 12 from the sensors.
If they re turned on in both the sensors then there is no issue with the power supply.
Two types of accidental obstructions can cause the safety sensor to prevent a garage door from closing.
Flip the circuit that.
If any object blocks the path of the infrared sensors the garage door opener will not activate or will reverse if operating.
Adjust each sensor in small.
Nothing comes first than safely.
Safety sensors are mounted at the bottom of your garage door tracks about six inches off the ground and shoot an invisible beam across the opening of your garage door.
Engaging manual mode on.
Place the box in the garage doorway making sure the box is in front of the garage door sensors.
Loosen the small nuts that hold each sensor to the l brackets with a small adjustable wrench.
The first is an obstruction in the path of the door and therefore in the path of the sensor.
An incorrectly adjusted garage door opener and sensor can cause damage to the garage door motor lift mechanism your house or worse a person or pet.
Do keep in mind to oil all hinges correctly.
Look for small led lights on the sensors.
As they are mechanical parts they will need oiling from time to time.
Disconnecting garage door sensors.
Cleaning and adjustment remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag.
A few minutes every six months or so will.
If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply.
If you feel any kind of disturbance call an expert.
Disconnect the power to the garage door.
Important safety feature 2.
They are only active on the down cycle and will make the garage door opener reverse and go back up if something crosses the beam.
Cycle the garage door.
Setting the door to manual mode.
Loosen the nuts just.
Infrared sensors the second line of defense is a set of infrared sensors which should be mounted 4 to 6 above the floor on each side of the garage door frame.
How to disable a garage door sensor method 1 of 3.
Strip both ends of wires from each sensor and twist like colored wires together.