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

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Garagedoor will open with button when coming in but if you push the button when you leave you have to do it manually and you have to hold the button down the whole time

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Something is blocking the inferred safety sensor.

Posted on Oct 04, 2009

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2 Answers

Guardian garage door open will not close, it beeps 12 times


optic sensor issue most likely. check alignment, check wire for breaks, check staples shorting out wires. it you hold the wired wall button and the door closes, then it is a sensor issue. you can also just jump the terminals where the wires connect on the opener motor and see if it works normally, if so, again the sensors are the issue.

Apr 30, 2015 | Building Materials

1 Answer

Garagedoor opener troubleshoot


You should have a power reset button on the backside of unit. Push it in and it should work

Mar 06, 2015 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My flash won't pop up.


Theres a button on the side of the camera with a lighting bolt on it push to open leave lens cap on to test then go to menu look for flash/ bracketing and set to open

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2 Answers

Remote door opener


So, you get out your remote control to your garage door opener and, then get your owners manual to your new car. You need to follow the instructions from the manufacturer to be able to program the remote control to the car.

Ok, you have followed the instructions from the car manufacturer and you press the button for the garage door to go up.......and nothing happens. So, then you think you have missed a step on the programing. Well, what most instruction manuals leave out is the step from programing the car/truck/van to the garage door machine itself. On the back side of your garage door opener is a panel called the logic board. The logic board is the computer or brain of the machine. Most new garage door openers now are a mulit-code machine. By that, i mean it uses several signals each time you press the button on your remote control. This is for security, so your code can't be stolen by a code-grabber.

Now, comes the step of programing the vehicle to your garage door opener. Once you have followed the instructions of programing your vehicle, you now have to "teach" the car to the garage door opener. You will need some help doing this. You will have to get someone to press the button in your vehicle and hold it down, while someone else has to press the learn button on the back your your garage door opener mounted on the ceiling. The learn button on the back of your machine will be square if using a liftmaster machine. Craftsman, Liftmaster, Chamberlain are all the same. Their learn buttons are square, and usually are yellow, red/orange, or purple. If using a Genie, it has a button that says "learn button".

The person pushing the button on the machine will only have to push and release the learn button. DO NOT hold this button down. If you do, it erases all of the programing in the machine, and you have to re-program all the remote controls that you have. You will have to read my other hub to find out how to do that. You will probably say a few words you shouldn't either. :-) Programing the vehicle to the machine only takes a second, and when the machine accepts the code, the light bulb on the machine should flash for a brief moment, and you should hear audible click. Yep, it's that easy! I dont know why the auto makers leave that step out. Anyway, i hope this helps, and if you have any questions.. leave them in my comments and i will try to walk you through it. See the photo above and you will see the typical logic board...the square red/orange learn button is easy to see. Just remember to press and release

May 08, 2012 | 1995 Lincoln Town Car

1 Answer

Garagedoor opener fixed on wall will will open and close door. but will not work from the remote. problem my be because little green light flashing permanently. what is solution


Your opener is in the lock mode. Press and hold the lock button on the wall control for 3 seconds. This should stop the flashing of the light.

Feb 22, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

The sprocket snaped as garagedoor was comming down how to repair it


You can get the part at any good door opener service company. The part number is 41C4220A and it comes with instructions.

May 11, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Don't have owners manual. I how do I setup the


garage door opener that may be different. But, I believe there are 2 ways to do it. Try pushing the button on the back of your garage door opener by the LED. The light will begin flashing for 30 seconds. During this time, it is accepting new signals. So you have to quickly get in your car and push and hold the button you want to work your door. If the opener accepts the signal, it will flash its floodlight. Then just push the homelink button again to see if it raises/lowers the door.

The second way I don't remember quite so well, but I believe you hold the corresponding button on the homelink until THAT starts flashing, then point your remote at it and push that button. The homelink will flash 3 times quickly if it accepts it. I don't think I've ever gotten this method to work, which is why I'm unsure of the procedure.

I've had new and used cars with and without manuals and the first procedure has always worked. It may take a couple of tries, though

Oct 22, 2009 | 2000 Chevrolet Impala

1 Answer

Sesam 200 garagedoor opener/lift will not run anymore


Originally posted July 2, I doubt he is still here waiting.

Jul 02, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Programming kepad for Sears Craftsman Garagedoor opener 1/2 hp


The only procedure I have ever followed is to press the learn button and then enter the code, and not do anything else. I think your last step of holding the button until the light goes out is clearing codes as fast as you enter them. Just stop after you enter your code and let the learn mode time out on its own. That should do it.

And don't put your head through the wall. It just causes more headaches.

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

1 Answer

Error Code C 21:00 continues to flash


Hi, ok now you hold your breath and follow the instructions.. 1. remove all the batteries including the tiny backup battery (usuall seen behind the screen) 2.then hit it very hard.. now insert the batteries and check .. if you dont belive read the link http://www.camerahacker.com/Forums/DisplayComments.php?file=Video%20Camera/Sony/DCR_PC5E_Error_code_C_21.00.html all the best regards sreejith

Jul 13, 2007 | Sony Handycam DCR-TRV530 Digital Camcorder

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