Garage door will open to sensor level and stop

Hi Vickie,

The safety beam portion of the garage door opener is set up to stop the door from closing if something (car, person, etc,.) is in the doorway.

When the door is open - if you press the hard wired push button (not the wireless remote) the door will either close until shut completely, or begin to close and reverse direction as soon as you let go of the button. When this happens, it *usually* means that a sensor is blocked - and reversing the door motor. If you try yhtis with the remote the door may not move at all or just bump down and stop.

You should re-align the sensors as described in the link below. Good luck!


How to Replace the Safety Sensor for Garage Door Opener Repair Guide Help...

How to Adjust Photo Eye on Garage Door

broken springs...door to heavy for motor to lift call a pro

You may have a broken spring.

Does the door work manually.

If it works manually replace the rpm sensor - if it doesn't replace the spring(s)

Check the door springs and also remove the cover from the motor unit and check the drive gear. The door spring could be broken or the drive gear may be stripped.

The sensors only work when the door is closing.

Broken door spring.

I had a simular issue, except mine was that the previous owner decided to mess with all the settings and mounts and screwed everything up.

The problem isn't your force sensors its your downwards stopping sensor on the opposite side of the opener. For me I had to take the entire panel off and replace the sensor back in its holder, but try adjusting that sensor setting (clockwise goes down, counterclockwise goes up).

If that doesn't work then i dunno:)

Also set both force settings in between 0-1, for some reason with mine if i set it higher it would set them off....

lubricate track and drive chain or screw if it resists moving too hard it thinks it hit something and will back up

After replacing the worm gear and main drive gear on my Craftsman 1/2 HP garage door opener I found that my door moved about 4 inches stopped and reversed the same distance. I checked all the settings and everything seems OK. What fixed the problem was I released the two allen set screws on the end of the motor shaft and pulled tha motor shaft toward me. When I replaced the black plastic cap that looks like a pill cap top on the end of the shaft this corrected the depth setting that cap rotated through the RPM sensor. I set the limit settings (up and down) on the side of the opener and reset the force pots marked (KC) to mid range.
the door now works. I hope this helps. I also checked and eliminated the door sensors by putting a box in the beem this inhibited any movemnet at all, so I knew it wasn't the door sensors as there was at least 4 incheds of movement prior to the box and nothing with the box.

I would try jumping a wire across the white & red terminal to see if your safety sensors are working Properly! If your door opens you have a loose connection or faulty sensors.

try adjusted the sensor controls on the sode of the unit other wise replace the logic board
http://www.chamberlain-garage-door-openers.com/circuitboardcompatibilitychart.htm