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

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The lights on our Chamberlain PD758KD garage door opener are cycling on and off with a frequency of 6-13 seconds. The LED on the opener is off and the LEDs on the wall switch are steady. The unit was installed a week ago. Dave

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You need to call whoever you bought the opener from. It has a warranty.

Posted on May 14, 2010

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Posted on Jan 02, 2017

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How do I change the code on my garage door opener. Have one and lost one.


Press an hold the learn button on the garage door opener for 10 seconds. You will notice an amber LED either next to or above the learn button. When the LED goes out the anything that was previously programed will be deleted. Now press and release the learn button once the amber LED will come on steady. Now press the button on the garage door opener you want to program to the garage door opener. You will hear a click and the light bulb on the garage door opener will go off and come back on. Your garage door opener remote is now programed with a new code.

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1 Answer

Sears garage door opener will not work from remotes


Make sure the LED in the wall control is not blinking. If it is press and hold the lock button for 3 seconds. If the light is not blinking there is always the possibility that the receiver in the logic board has quit.

Sep 24, 2011 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage Door Remote


find attena and point it to your door if this does not work try adding a piece of wire to attena and making it longer also always check batts...

Apr 03, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

How do I re-code my Raynor Garage door opener Model 61 rdg (on Remote) Serial # 17592 (on opener) Year 1992?


Open the back of the remote, change the order of the pin switches inside your remote. Then Go to receiver box ( on back on Motor) Open name plate to locate your learn button, Push the learn button, an LED light comes on for 30 seconds. During the 30 seconds, push the button on the remote and you are done

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

1 Answer

Chamberlain 1/2hp won't open/close and learn LED flashes 5 times


The gear needs to be changed kit #41c4220a. Be sure to change the bottom bushing on the motor mount.

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

1 Answer

Garage Door only opens with wall unitq


The unit is in the lock mode, push and hold the lock button in for about two seconds and the green LED should stop flashing. Your remotes should work.

Dec 29, 2008 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Chamberlain garage door opener unit-is it compatible with craftsman keypad?


Hello,Linda well this is your lucky day ,I have installed garage door openers for sears for 10 years and i can tell you that craftsman,chamberlain ,and liftmaster are all the same machine and manufactured under the liftmaster name , if you buy it from home depot it will be a chamberlain ,if you buy it at sears ,it will be a craftsman, and if you go to commercial building supplier it will be a liftmaster! now getting that out of the way even though they are all compatible ,there is one thing that stands in their way and that,s time ,For example if your chamberlain machine is 5 years old and you went to sears last week ,the chances of the frequency being the same are not good , most likely you have the wireless keypad , one way to test the sears keypad against the chamberlain machine is to locate the smart button on your machine ,this button allows for programming of remotes and keypads , to test and see exactly what im talking about take your remote and locate the smart button ,if you have three buttons on the remote press one of the buttons that are not being used on the remote ,above the smart button their will be a blinking light ,if you press your remote button you will notice the light go from a blink to a rapid flash , This is telling you that you are sending a signal for programming to the machine , well the keypad is exactly the same all you have to do is push the enter button on the keypad and have someone watch for the rapid blinking light ,if they are compatible the light will blink rapidly on the machine so all you have to do now is have someone press the smart button once on the machine your indicator light will now be a solid light you will have approx 60 seconds then to put a 4 digit code in the keypad and then press and hold down the enter button on the keypad , at this point you will notice the lightbulbs on the chamberlain machine to shut off and come back on this is to tell you that the machine accepted the code , after thats been done you can use your keypad , you can also find the owners manual to the chamberlain and follow the same instructions to programming the remote , they are identical in programing , if your keypad is not the same frequency you can also tell by looking at the frequency code on the backside of the keypad and also the chamberlain unit usually where the light bulb is will be its code

Oct 01, 2008 | Chamberlain Powerdrive PD422D 1/2 HP...

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