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

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Craftsman garage door remote control 139.18791B Not working i replace the battery and stil dont work can you halp?

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You may have to reprogram the remote. it's easy push the square red or blue button on the door opener and within 30 sec push the 4digit number on your remote and push enter. the light should blink twice to tell you it took the new connection.

Posted on Oct 03, 2009

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If you only have the one remote and it quit it could be a bad remote or a bad receiver in the motor unit. If you have another remote or keypad that is working then you know it is the remote. A replacement is necessary.

Posted on Oct 03, 2009

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1 Answer

Why wont my 3 remotes (hand held factory in remote)only work to open the door ? They no longer work to open the door.I did replaced the batteries and reprogramed, craftsman 3/4hp chain driven garage d


SOUNDS LIKE SOMEONE MAY HAVE PRESSED THE LOCK / VACATIONS SWITCH ON YOUR WALL CONTROL. IF STILL NOT WORKING AND THE LED IN THE WALL SWITCH IS NOT FLASHING TRY AGAIN TO PROGRAM YOUR REMOTES.

GOOD LUCK

STEVE

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1st, try replacing the battery in the remote. If that doesn't work, you will need to replace the logic board on the opener, which is typical in the craftsman openers.

Oct 02, 2014 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

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Make sure the light in the wall control is not flashing. If it is press and hold the lock button for 3 seconds. Check your batteries.

Apr 19, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My garage door opener remote does not work.I have a craftsman garage door opener manufactured in 1999. The garage door opener remote panel has a green light on and will open the garage door. The remote,...


Make sure the green light in the wall control is not flashing. That locks out the remote. If it is press and hold for 3 seconds the lock button on the wall control. It could just be that your remote has failed.

Dec 10, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

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Press and hold for 3 seconds the button on the wall control with the lock icon. There you go.

Nov 21, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

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the remote that does not work is probably bad.orrr it might need the code reset to match the 1 that works..

Nov 15, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

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It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.

Sep 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Remote doesn't work!!!


You could try to replace batteries. May be they are stong enough to make the LED flicker, but not strong enough to send out a proper signal to the receiver.

Mar 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Keypad garage door opener will not operate


what keypad are you using with new opener? Frequency has changed. can't use old one. you probably never needed to change things; just needed to follow proper coding procedures.

Dec 16, 2008 | Sears Craftsman LiftMaster Chamberlain...

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