These surges often occur during lightning storms. I have a 1/2 HP Craftsman garage door opener that is about 20 years old. Some of those reasons are preventable while others are not. Open the garage door and watch it closely as it opens. Resetting the door is something that can be confusing. I had a power outage and my door wouldn’t open with t the remote I had to open it by hand.What can I do to get it to work again? It is only safe to put your garage door in manual mode when it is in the down position. Reply. I am not referring to the remote but the wall mounted unit connected by wire to the motor. There are many reasons why a garage door opens by itself. When turned back on garage door opener still not working. What is happening? Common Frequencies. Equipment that is nearby your … When the garage door opens about halfway, or 5 feet, from the ground and stops, the up limit switch needs to be adjusted. Get shopping advice from experts, friends and the community! Jere says. Had a storm and breaker to garage was tripped. Need to know how to reset or recycle it to get it to work. By following these steps, you can reset your garage door quickly and without fuss. Share it! Incorrectly set limit switches may prevent your garage door from closing completely or opening all the way. August 8th, 2010 . This may be due to a power outage or just wanting to open the door a few inches and no more. Report This by Manage My Life. Power surges can cause garage doors to behave in mysterious ways, namely by opening themselves. Find the Chamberlain garage door opener technical support you need to help fix any issues you may be having with your garage door opener and parts. how do you reset garage door opener after power outage. Tags . Recently the wall switch that powers opening and closing is not lit and will not activate the opener. From informational videos to product manuals and troubleshooting articles, the Chamberlain Group resource library has the information you need. Richards says it's rare, but in some instances, a door will open and close by itself because someone else has your code or frequency. I only get a flashing yellow light next to the "Smart" red button. April 19, 2020 at 3:42 pm. The most common causes of the phantom openings are as follows: Power Surges. Thunderstorms and windstorms can cause power outages and surges that may damage the electrical circuits that open and close the garage door. I own two Craftsman garage door openers. Garage Door Openers, Garage Organization & … Get more answers from the people in your networks. After a storm, and subsequent power failure, one will not work. CB radios, police radios, a nearby radio station or radio tower can also make a garage door open and close on its own. This damage can cause the door to open and close on its own. The garage door opener limit switch tells the motor that lifts and lowers the garage door when to stop running.