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

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Older model keyless will not open new craftsman garage opener.

I purchased a craftsman model 139.53930DM garage door opener and my older model 139.53684 keyless opener will not work on it.

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Inside or on the back of the opener motor housing or sometimes on a remote receiver (an external box connected to the motor unit and a push button) is a set of switches ... if you take your opener apart you should also see a set of switches ... those have to be set the same way as the opener ... thats the code select ... make sure the battery is ok .. you can check with sears to see if your older remote is compatable ..

Posted on Oct 07, 2009

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pgh_pa_guy
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SOURCE: My Craftsman 53684 keyless won't work with my Craftsman 53930DM.

I've never seen the first set of steps you mention. You always need to press the "learn" button first so the opener will be in the mode to capture the new code. As far as I know it is not necessary to hold the Enter button on the keypad (at least I never have). While the "learn" LED is lit on the opener, just key in the new code and press Enter.

Maybe you should try clearing the receiver first by pressing the "learn" button and holding it until the LED either goes out or starts flashing (depends on model). Then try reprogramming. Maybe the little computer is confused.

Posted on Dec 01, 2008

  • 1 Answer

SOURCE: My Sears Craftsman Model 139 53684 Keyless remote

Make sure that when inserting the 9 volt battery that those red & black wires are not somehow pinched, twisted or stretched. I just fixed mine... The battery terminal was crushing one of the wires and preventing the battery to supply power to the keypad. I found it out by NOT securing the battery case door and my opener worked fine. Securing the battery case door with the screw and thightening, my opener DID NOT WORK. It was that simploe of a FIX!

Posted on Jul 06, 2010

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