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

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I want to move the wall switch on my garage door opener. How does the cover come off?

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If it the deluxe wall button, it has a big white button and a small lock and light buttons. Take a screwdriver and pry out on the top of the big white button. You will see a screw that is holding it. Take this one out. There is another srew that the button is attached to. Just slide up on the button and it should come off the wall.

Posted on Jan 26, 2009

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Remotes and wall switch will not lift the door. The head unit lights come on and I hear a click but nothing moves.


Remove the cover from the motor unit and check the drive gear. It may be stripped. If so it will be obvious.

Feb 18, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

How to set garage door opener


Hi,

Find where the antenna comes out of the garage door opener motor and look for either a learn button or a set of switches. (You may need to remove the lens cover from the motor head). If the antenna is not found, look for a wall-mounted external receiver with antenna. It should also have a removable cover.

To program using the learn function, push the learn button on the garage door opener motor. An indicator light should turn on and glow steadily. You now have 30 seconds.

Press and hold the corresponding learn button on the remote. Stop once the motor light blinks instead of remaining solid.

To program a switch-type opener, again take the cover off of the motor unit or wall mounted receiver (wherever the antenna is located). You should see either 8, 9, or even 12 switches that may have two or three positions each.

Open the battery cover on your remote to locate the remote switches. For every switch on the motor, set the remote switch to the exact same position. Open = Off / Closed = On. This is where the pen or small screwdriver may come in handy for moving the switches.

Close the battery cover and test the opener. If all switches match, it should work immediately.

I hope this helps.

Good luck.

Nov 10, 2010 | 2008 Toyota Avalon

2 Answers

I had a lightening strike at my home. Since then, the garage door does not function with wall switch or remotes. when i press the switch, light comes ON on the door opener and i hear a click but nothing...


Well, I don't think that disconnecting the garage door from the garage door opener would affect function.

The lightning strike could have destroyed the circuitry inside the garage door opener, seeing that it won't operate with the wall switch or remotes.

It's likely that a board was fried by the lightning which would render the garage door inoperable.

Aug 08, 2010 | liftmaster Chamberlain Garage Door Opener...

1 Answer

I have a Craftsman garage door 139.53660srt1 but when I press the garage door button on the wall the unit sounds like it is on but the sprocket on the top doesn't move the chain connected to the door. ...


Remove the cover from the motor unit and you will find you have a stripped drive gear. The part number is 41A2817 and is available at any good door opener service company. It will come with instructions.

Apr 25, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door does not open or close


You have a stripped drive gear. Remove the cover from the motor unit and you will find white sawdust all over. The part number for the gear kit is 41A2817 and is available at any good door opener service company. It comes with instructions.

Feb 12, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My Craftsman GDO model # 139.53990D does not open when I push the wall button the motor clicks but does not engage. I have been trying to adjust the travel limits and it now moves all the way back to the...


You need to remove the cover of the motor unit and check the drive gear. It sounds like it is stripped. Your explanation is a little confusing though. You say it moves all the way back to the cover protection bolt and then you say it won't open.

Jan 03, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door opened but will not close. I opened


I think the trolley has jammed against the bolt just in front of the motor unit. Remove the bolt and then run the door until it is closed. With the door closed locate the 'up limit' control on the side of the motor unit. Turn this 2 turns in the opposite direction of the arrow printed on the cover. Replace the bolt.

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

1 Answer

Garage door will open with remotes, but not with the wall switch


Sure sounds like the wall control is bad. Very common problem.

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

1 Answer

Chamberlain CLT1D Remote Problems


Its very possible for someone esle to have your code I would say try two things. The first thing is too check your wall button wire shake it is a little make sure there are not cuts or staples in the wire its self cause it to short out and run. Then change your codes is pretty easy on the back of the opener unit its self there are the dip switchs you will most likly need a step stool. Just move 2 or so of the dip switchs and then move the same ones on your remote. On your remote the dip switchs should be undernether the batter cover

Sep 14, 2008 | Sears Craftsman LiftMaster Chamberlain...

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