Chamberlain Garage Door Goes Down Then Back Up

When your Chamberlain garage door goes down then back up, it can be frustrating. This can happen for several reasons, however, the most common cause of this issue is a misalignment between the door and the sensors.

The sensors are located on either side of the garage door opening. They emit a beam of light that creates an invisible curtain. When the door is closed, the beam is broken, and the door stops closing. If the sensors are misaligned, the beam may not be broken, and the door will think that it is still open. This will cause the door to go back up.

There are a few other things that can cause your Chamberlain garage door to go down then back up. These include:

A faulty sensor
A broken wire
A problem with the logic board
A loose connection

If you are experiencing this problem, there are a few things you can do to troubleshoot the issue:

Check the alignment of the sensors. The sensors should be facing each other and should be about 6 inches off the ground. Make sure that there is nothing blocking the beam of light.
Check the wires connecting the sensors to the logic board. Make sure that the wires are not damaged or loose.
Check the logic board. The logic board is located on the back of the garage door opener. Make sure that the logic board is not damaged or loose.
Check the connections between the garage door opener and the door. Make sure that all of the connections are tight.

If you have checked all of these things and you are still experiencing the problem, you may need to call a qualified technician. They will be able to diagnose the problem and make the necessary repairs.

Here are some additional tips for troubleshooting your Chamberlain garage door:

Make sure that the batteries in the remote control are fresh.
Check the power to the garage door opener. Make sure that the power is turned on and that the outlet is working.
Try resetting the garage door opener. This will clear any errors that may have occurred.
If you have a Chamberlain MyQ garage door opener, you can try using the MyQ app to troubleshoot the problem.

If you are still having trouble with your Chamberlain garage door, you can contact Chamberlain customer support for assistance.