Garage Door Sensor Not Working

Press the button that closes the garage door on the garage wall or on your remote.
Garage door sensor not working. Sensor power reconnect the sensor to its power supply a common cause of a malfunctioning garage door sensor is. If the sensors are working the garage door should immediately stop closing and return to the open position. Remove the wires from the wire nuts or cut the sensor wires 12 from the sensors. Sensor path make sure nothing is obstructing the sensor beam in general garage door sensors block the door from.
My liftmaster garage door stopped closing the normal way. Place one of the cardboard boxes in the garage doorway. Adjust each sensor in small. Strip both ends of wires from each sensor and twist like colored wires together.
Sensor path make sure nothing is obstructing the sensor beam 1. Cycle the garage door. If you still haven t identified the problem or if you want to test the sensor wires themselves remove the sensors from the brackets. Cleaning and adjustment remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag.
If the garage sensor is working properly the door will stop closing and go back to the open position. Loosen the small nuts that hold each sensor to the l brackets with a small adjustable wrench. Press the remote control button to close the door.