Garage Door Opener Goes Down A Little Then Back Up

If the door seems okay there may be a problem with the trolley or the opener itself.

Garage door opener goes down a little then back up.

When the opener reverses the screw turns the opposite way and the nut travels back. Turn the down limit switch screw clockwise one turn with a flat blade screwdriver if the garage door closes and then begins to open back up. Here s a rundown of some of the possible reasons this can be happening. A careless or rushed parking job can cause the car s bumper to block the sensor.

If the door reverses and the lights blink 10 times there s still a problem with the sensors or something tripped them on the way down. Sometimes the sensors will be in alignment and just as the door gets close to being shut it will vibrate enough to push one sensor off. It goes partway down reverses direction and goes back up again. Your garage door sensor works by having two photo sensitive devices on either side of the garage door.

If the door hits something hard it will reverse. Your travel down setting needs to be adjusted. See if you can find a manual online and go throught the setup steps again. Check all of you conenctions and the installation of the new logic board.

There may be two nuts on one track. You might consider calling a local garage door company to come and debug it for you. In order to fix this you ll want to make small changes to the close limit setting until the door opener knows to stop once the door has reached the floor. If your garage door is closing fully and then reversing to open again then it may be due to a problem with the close limit switch.

If these can t see each other when the door is almost shut it will send a signal to the garage door motor to open back up. One for the opening limit and one for the closing limit. This is almost always the result of a dirty or obstructed safety feature. You push the button to close the garage door.

The garage door will automatically go in reverse. If the door had hit a stop it would not have reversed. Garage door only travels a little way and then reverses does your garage door only travel a little way 6 inches or so and then reverse. If it moves all the way up now then the trolley should be okay.