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

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MY 3 GARAGE DOOR REMOTES WONT OPEN OR CLOSE MY GARAGE DOOR THE ONLY WAY IT WILL WORK IS BY THE BUTTONS ON THE WALL IN THE GARAGE.

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If you have the 3 button wall control make sure the lock function is not on. You can tell this if the light in the control is blinking. If it is press and hold the button with the lock icon for 3 seconds. If this is not the case you likely have a logic board problem.

Posted on Jun 22, 2009

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It could be the garage door motor that is acting up. Try closing it with the button in the garage. If that's not the case, you may need a different garage door opener.

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Button in the garage works, but remote will not open or close garage door?


That button on the wall is called a wall control. If you have a wall control with 3 buttons and the light in the control is flashing you need to press the lock button and hold for 3 seconds. Make sure the battery in your remote is good.

Mar 10, 2011 | Sears Craftsman LiftMaster Chamberlain...

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thanks w/d for getting right on my problem,my closer doesnt have lights at the bottom, it's a garage sale deal. works good otherwise exept I have to hold closer button on the wall to close.

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

Aug 29, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door wont work with remote


If the small light in your wall control is blinking it is in the lock mode. Press and hold for 3 seconds the button with the icon of a lock. This will toggle the lock function off.

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1 Answer

Garage door opener remte built in in my van suddenly stopped


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1 Answer

Garage door opening/closing problem


Could be a bad wall button or a smashed wire.
Anytime a door opens and/or closes by itself, or remotes work intermitantly I look for a smashed wire between the motor unit and the wall button or a bad wall button.

If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door or interfere with the remote.

Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.

The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.

The test is to disconnect the push button wires at the power unit. If the self operation / interference stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.

HOPE THIS HELPS

Jan 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Master 1/3 HP 1997 Door Working, not responding to Remote


I have the exact same situation, except my model (139.53607) is older than yours and does not even have an LED. Remotes only works after after shop light goes off (5 minutes or so), but wall button works fine. Did call Sears Service and the tech told me the logic board is probably shot. Don't want to waste money on service call so I'll probably have to buy a completely new unit in the Spring and go through the winter without the use of a remote.

Jan 24, 2009 | Sears Craftsman LiftMaster Chamberlain...

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