Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
I have Wayne Dalton Classic drive garage door opener. My remotes were not working. I replaced the board. Programmed the remotes. They are working, but something else broke. My LED interrupter came out. I put it back. When I try to open or close the door, first the light comes on and stays on. Door does not moves. I think this is a kind of code, but can not google it what it is. Then if I push the button or remote one more time it will go back and forth like a saftety issue. Please help if you have any idea. Thanks.
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Posted on Jan 02, 2017
I had the same problem with my Craftsman opener but different model. However to fix this I simply followed the instructions that came with the opener and reprogramed the remote to the opener. The instructions are in your owners manual and are pretty straight forward.. John
Posted on Dec 11, 2008
your infrared sensor is either misaligned, faulty, or you have a broken wire from your sensor to your door opener. (Flashing light indicates infrared light path is broken). both sensors should indicate green led. door wil not come down is safty feature to prevent door from closing when light path is broken.
Posted on Jan 16, 2009
ok crystal,calm down this is an easy one! first locate the smart button on your openers , next you will press and hold down the smart button until you see an indicator light above it shut off, while your holding that button the light will be solid ,Now your ready to program your remotes ,first programm one side by taking each of your four remotes and pressing the smart button on machine then pressing the button on the remote you want to program,by doing that you will notice the lightbulbs on your machine shut off and go back on , This is an indicator that your machine has accepted the code , now do it with the other three remotes , after you,ve programmed all four ,go over to the other machine and repeat the process but this time you have to choose another button on your remotes since you,ve programmed all four remotes to the same button on each remote ,just choose the bottom button on your remotes this time to keep them seperated , hope this helps you and it is as easy as 1-2-3 your owners manual will describe exactly the same ,i know because i,ve installed over 27,000 machines working as an installer for sears, please leave a nice feedback rating if i was able to help you, good luck,Sincerely Glenn Mayer
Posted on Apr 01, 2009
Check the contact at the bottom of the socket and (with the unit unplugged) lift (or pull) it up to make contact with the bulb easier or tighten the bulb a bit more than normal.
Does the light ever come on?
Posted on Jul 28, 2009
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