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

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Neither remote control will open door but wall mounted button wil

Neither remote control will open the garage door but the wall mounted unit will. I replanced batteries in remotes but still they will not work. Could there be a receiver in the motor housing that has gone bad and can I replace it if it has.

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  • foxkm Dec 07, 2008

    Wall unit will open and close door but remotes will not. NUmber key pad does not work either. Model #139.53990D 3/4 HP

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Note: you must reprogram the remotes once you change the batteries.

Check to see if the light on the wall button is flashing.
This would indicate the lock function has been activated. If you have a button that says lock / vacation push it - the led should stop blinking - reprogram your remotes and you ar set.

Posted on May 29, 2010

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Make sure the code set inside the remote is the same as in the main reciving unit code.

Posted on Dec 06, 2008

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The motor/control unit may have gotten reset. It needs to relearn the codes transmitted by the remotes.

MIne has a "learn" button on the control unit. Press and hold, then press the button on the remote. Lights will flash indicating it has received and stored the code. Release button.

Check to see if the remote works now. If so, all three should be working. If not, dig up your manuals.

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a component in the wall unit is failing , that makes the conection happen when the remote signal is recieved , ( it is recieving the remote signal but not sending it out to the control circuit for the motor )

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