Craftsman Garage door openermodel #13953930DM
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when I push the built in button in my garage the door closes as soon as it touches the ground it returns back up
Posted March 21, 2013
Julio, March 21, 2013
It can be very frustrating when your garage door opener fails to shut properly. I did some research and provided a link to a similar question and answer on our site. I hope this will shed a little more light on the issue until the Expert responds to your question in more detail within 24 to 48 hours.
Tykara, March 22, 2013
Thank you for submitting your question. I understand your concern and I will be happy to assist you. I would first adjust the limit switch for the garage door opener. You'll need to adjust them until you get them where you want them. If the limits is not he issue, then I recommend checking the safety sensors. Make sure both sensors have a steady LED light in both of them. If they don't, align them to one another until they do. If the senors are good, then check your motor head installation. Make sure the black interrupter cup on the end of the motor shaft is pressed all the way on and that the RPM sensor is plugged in properly. If neither of these are the issue, then you probably did not have the motor shaft pushed all the way back when you tightened the coupler when installing the gears. Loosen that coupler up and from the front of the motor (opposite end in which the coupler is on) push the shaft back as far as it will go. Hold it there while you tighten the coupler back up and then try it. I hope this helps. Please reply back to this thread if you require further assistance. Thank you for using Manage My Life.
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