Garage Door Starts To Close Then Reverses

If your garage door starts to close and then reverses, there are a few possible causes. The most common cause is a misaligned sensor. The sensors are located on either side of the garage door opening, and they emit a beam of light that creates an invisible barrier. When the door is closing, the sensors detect the presence of an object in the doorway and cause the door to reverse. If the sensors are misaligned, they may not be able to detect the presence of an object, and the door will close all the way.

Other possible causes of a garage door that starts to close and then reverses include:

* A faulty motor * A broken spring * A damaged gear * A loose chain * A problem with the electrical system

If your garage door starts to close and then reverses, you can try the following troubleshooting tips:

Check the sensors.

Make sure that the sensors are aligned and that there are no obstructions blocking the beam of light. If the sensors are dirty, you can clean them with a soft cloth. *

Check the motor.

The motor is located at the top of the garage door. If the motor is making a strange noise or if it is not running smoothly, it may need to be replaced. *

Check the springs.

The springs are located on either side of the garage door. If the springs are broken or damaged, they will need to be replaced. *

Check the gear.

The gear is located at the bottom of the garage door. If the gear is damaged, it will need to be replaced. *

Check the chain.

The chain is located on the side of the garage door. If the chain is loose, it will need to be tightened. *

Check the electrical system.

The electrical system includes the wiring, the circuit breaker, and the motor. If there is a problem with the electrical system, it will need to be repaired by a qualified electrician.