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

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I have an old craftsman 1/2 hp door opener. It

I have an old craftsman 1/2 hp door opener. It open fine when using the unit on the wall. sometimes is will stop in the down cycle and go back up. the remote does not work at all even when I changed the batteries. it comes up automatically at the same time each morning. what should I do?

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You may have a bad wall control. Try disconnecting it from the opener and try. Otherwise it is time for a new model.

Posted on Apr 26, 2010

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I have a 1/2 hp craftsman opener. Remotes work fine. Wired wall unit has a blinking light on the open button and will not work Lock pad and light pad work but not the operate pad.????


Try pressing and holding the lock button for 3 seconds to stop the light from blinking. Your wall control may be bad. Usually when that light is blinking it is the remotes that will not work.

Jul 02, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman garage door 1/2 hp opens. Keeps open for no apparent reason. In the middle of the night and sometimes during the day, How can I fix


Most commonly this is caused by a bad wall control or the wiring going to it. The wall control goes bad from constant use and the problem with the wiring is caused by the staples most installers use. The staples cut through the insulation and cause intermittent shorts. I would remove the wall control and check it for a few days and if it happens again you can remove the wire going to terminal #1 on your motor unit. That will eliminate the wiring. Be sure to remember where the wires go on the back of the wall control as they are color coded. One is solid white and the other is white with a red stripe.

Aug 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

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Liftmaster 1/3 HP. Remote and wireless keypad stopped working.


Sounds like the reciever for you wireless devices is not working?

Aug 01, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman 1/2 HP Starts AND Stops Going Up or Down


with the age of the door, chances are it just doesn't move as easily as it once did causing the built in limiters to stop the door. the limiters are designed to stop the door from crushing something or someone if the safety beams fail and there is an obstruction in the path of the door. Some units allow you to raise (increase) the force used to move the door. Most times the adjustment screws are hidden either behind the light lens or behind a removable panel. The limiter screws are NOT the screws used to adjust the travel of the door. If you don't have the manual for the opener, you may be able to download one to assist in locating the correct screws if the opener has this adjustment. As far as by-passing the safety beams, just place a jumper wire in place of the safety beam receiver.

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Jan 31, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Grage door blinking yellow, click and won't open with anything.


TRY RESETTING THE UNIT BY UNPLUGGING IT FOR ABOUT 5 MIN.

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).
HOPE THIS HELPS


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

2 Answers

Garage door opened, won't close


If you can press and hold the wall button and the door will go down, you have a photo eye issue. Check the photo eyes at the bottom of the door.

Jan 16, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Remote Garage Door Openers won't work


Does your wall console have a LOCK or VACATION setting. Turn off.

Dec 13, 2008 | Sears Craftsman LiftMaster Chamberlain...

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