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

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Sears Model 139.53985D - remotes suddenly do not work - can't reprogram them either. When activated or trying to reprogram the unit clicks but nothing starts. Any ideas?? Thanks

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  • Don Maggard May 11, 2010

    Is your door in the open position?

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Make sure the batteries are good in your remotes. Next it might be your openers logic board. Get the numbers off the unit and look for a replacement on ebay as there are plenty of used good parts out there, heck even new ones if you want to spend the extra cash.

Posted on May 16, 2009

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The remotes for my craftsman garage door opener will not reprogram. the light on the rear of the unit does not blink when I try and reset / reprogram the remotes.


Anytime you cannot program more than one remote it is the receiver that has quit working. The receiver is part of the logic board.

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FIRST CHECK TO SEE IF THE LOCK/VACATION BUTTON ON THE WALL CONTROL HAS BEEN ACTIVATED. THE LED ON THE WALL CONTROL WILL BE FLASHING. - SIMPLE SOLUTION PUSH THE LOCK BUTTON AND HOLD FOR 2 SECONDS TO TURN OFF LOCK FUNCTION.

SECOND TRY TO REPROGRAM THE REMOTES TO THE UNIT - THEY WILL SOMETIMES LOSE MEMORY IN AN ELECTRICAL STORM.

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IF WHEN YOU PLUG IT IN THE REMOTES STILL DON'T WORK TRY TO REPROGRAM THEM.
IF STILL HAVING TROUBLE--
COUNT THE FLASHES - GOTO LIFTMASTER.COM DOWNLOAD A FREE PDF FOR A SIMILAR UNIT (THE MODEL NUMBERS ARE DIFFERENT BUT THE CODES ARE THE SAME).
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How does everything look well? How old is unit? Did you push learn button for 10 seconds. Then pusj for 1 second and activate a remote button. lightbulb on motor should blink. if so, hit learn again for 1 second and push button on other remote. Do you have a LOCK or VACATION button. Make sure it is off . Is light on wall console blinking. you have remotes locked out.

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