Sensor Issues With Garage Door

My liftmaster garage door stopped closing the normal way.

Sensor issues with garage door.

Check the power supply to the entry keypad if you cannot access your garage. To help you troubleshoot your garage door issues here are the top 10 reasons your garage door won t work. Removing the obstruction from the sensor beam. A common cause of a malfunctioning garage door sensor is lack of power supply.

Remove any debris dust or cobwebs from the electric eye lenses on each sensor with a clean rag. If the sending sensor is slightly off it can cause the connection with the receiving sensor to be off by several inches over the span of a 16 foot wide garage door. The most common problem with garage door openers is safety sensor misalignment. Cycle the garage door through the opening and closing actions using the control on the garage wall.

If you find the lights turned off in one or both the sensors it indicates that there is a problem in power supply. The while idea behind garage door sensors is to be able to block the garage door. The first is an obstruction in the path of the door and therefore in the path of the sensor. This video takes you from my problem description to a successful repair all for under 24 00 u s.

Safety sensors sit about six inches off the ground by the garage door tracks and are always getting hit or obstructed in a busy home. Safety sensor issue to prevent the garage door from injuring someone in the door or damaging an item in the way of the door all models of liftmaster garage door openers come installed with a safety sensor. Look for small led lights on the sensors. This may sound obvious but your garage door transmitters need power to work.

Two types of accidental obstructions can cause the safety sensor to prevent a garage door from closing. Check the sensor for dirt or obstruction if the garage door behaves erratically. The transmitters remotes will not work to close the garage door. If the batteries in your transmitter are dead the transmitter won t be able to send a signal to your garage door to open.

Make sure you are entering the correct code and that the fuse breakers and wiring are intact if you cannot access your garage from the keypad. 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. If they re turned on in both the sensors then there is no issue with the power supply.