Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
If I press the remote, the door will not go down. I have to hold the button down until the door is completely closed, or the door will go back up.
I read the GDO manual.
Posted on Nov 30, 2008
Had excat same problem. In our case it was that the two sensors on either side of the door were slightly misaligned. The greed LED on the one sensor was solid green; the LED on the other was flashing. I moved the sensor with the flashing oight around until it showed a solid green LED. When i pushed the wall button it wokred perfectly. Our doors are about 15 years old and the sensores were very loose. Once you agn them, tighten the wing nuts and check them periodically.
Posted on May 02, 2009
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Posted on Jan 02, 2017
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