Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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Craftsman Liftmaster garage opener model #114OLM

I have a wireless keypad installed to open this door that was working just fine until a couple of weeks ago after a power outage. First when I tried to reprogram the keypad it worked but when I went to use the remote in my car it was not working, when I reprogrammed the remote the keypad would not work. I could not seem to get them both working at the same time and now the keypad will not work at all. I purchased a new keypad (thinking that was my problem) a Liftmaster model # 976LM, which I believe is the correct one for my opener (with the red learn button). I have tried to program it and it will not work either. Now I think the problem may be with the opener itself. Does anyone know how to fix this problem???
Thanks, Amanda

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When you are programming , how long do you push LEARN button for, If you push for 6 or more seconds, you are wiping out all code, Push for 1 second to add a remote or keypad,

Posted on Jan 15, 2009

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I have a craftman Garage Door Opener the promblem I'm having is when I hit the button to star up are down it starts then just stops and the power shuts off. but if I bump the bottom of the opener the power comes back on and it might work for a time or two then it repetes it again

Posted on May 24, 2011

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SOURCE: Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: I cannot reprogram the keypad outside the garage....

Make sure the battery is good and then locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and immediately release this button and then walk over to the keypad and key in a 4 digit code and press enter.

Posted on May 05, 2010

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I installed a Craftsman garage door a couple of weeks ago and all of a sudden it keeps opening by it's self. It is model #139.53918D what is causing this?


Make sure the door isn't closing too far. This will cause it to open. Your opener comes with a warranty. Call Sears repair.

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There is an antenna extender kit available for your opener. The part number is 41A3504 and should be available from any good door opener company that handles Liftmaster or Chamberlain. It should come with instructions.

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Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: outside keypad will not open garage door at all bu...


The inside button is hard wired. The keypad is a small radio transmitter. If the battery in the keypad is good and it doesn't work when you put in the code it has probably just quit.

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