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

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Transmitter not working ( 3 of them)

The remote transmitter will not open the door, The hard wire buttons still work. I tried resettine the code by follwing the procedure of hlding down the button at the transmitter at the same time as the one on the garage opener and nothing happened ( meaning the light never started blinking)
Liftmaster q/2 hp model 2000sd

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  • dennis31 Dec 28, 2008

    I have the same problem with a Craftsman 139.xxxxSRT. (There are several similar models.) The same thing is happening to me.



    It started a couple of days ago, with the door raising and lowering at random. I did as the manual said, and deprogrammed both openers, and tried re-programming them. Neither will work now....but the door doesn't go up and down randomly anymore. It does work from the wall buttons.



    I hope it's a fixable problem.

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Don't hold down green button. push for one second. do yu have console with vacation or lock button. deactivate it.

Posted on Jan 15, 2009

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Why Can't I add another remote to a merlin mt60p


If you purchase additional transmitters, the garage door
opener must be programmed to accept the new remote
code.
Program the Receiver to Match Additional Transmitter
Codes:
Using the orange "LEARN" Button:
1. Press and hold down the transmitter button you wish to
program to the opener. The orange LED will flash to
indiciate it is receiving signal from the transmitter.
2. Press and release the "LRN" button.
3. The sourtesy LEDs will flash once.
Ensure the door is clear of obstruction, then test the
transmitter.
Using the Motion Detecting Control Panel
(optional accessory):
1. Press and hold the button on the hand-held remote that
you wish to operate your garage door (1).
2. While holding the remote button, press and hold the
LIGHT button on the Motion Detecting Control Panel (2).
3. Continue holding both buttons while you press the push
bar on the Motion Detecting Control Panel (all three
buttons are held) (3).
4. Release buttons when the opener light flashes. It has
learned the code. If the light bulb is not installed, two
clicks will be heard (4).
Now the opener will operate when the transmitter push
button is pressed. If you release the transmitter push button
before the opener light flashes, the opener has not learned
the code.
To Erase all Transmitter Codes:
To deactivate any unwanted remote, first erase all codes:
Press and hold the orange "learn" button on opener until
the learn indicator light goes out (approximately 6 seconds).
All previous codes are now erased. Reprogram each remote or keyless entry you wish to learn.
http://gomerlin.co.nz/getattachment/2949a1dd-74ab-4576-850d-4f40de28fbe3/mt60p-installation-guide part 27 from installation manual page 15

May 05, 2014 | Garage Doors

1 Answer

Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: How do you reset your car transmitters...


To program your transmitters locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and hold this button for 6 seconds and it will erase all transmitters from memory. Note please: none of them will now work. Now hold down the button on one of the remotes and then press and immediately release the smart/learn button. Do this for each remote.

May 17, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Trying to clear the codes from my Garage Door opener. 41A3615, 139.53615SR, Grey Learn Button, '92 mfg date. I added a Klick universal wireless wall pad and a Klick universal remote and now my neighbor's...


In most cases, when a garage door opens or closes by itself, or when you find your door open, upon returning home, the problem is due to a short somewhere. This short is most likely to be in one of two places: either in one of your transmitters or in the wall button or its wiring.
When there is a short in your garage door transmitter, you will often find the garage door is up upon returning home, even though you know you closed the door when you left the house. A short in your transmitter causes a continues signal to be sent. As you are pulling out of the driveway the garage door closes fully and appears to stop, but as the carriage and arm run past the down limit and hits the header bracket it reverses, and the door begins to open, just as you start driving off down the road. You come home to find the garage door is up, as if someone else had opened your door. The best thing to do to troubleshoot the garage door problem is remove the batteries from your transmitters and try operating the door from the wall button. If the problem is intermittent, you may want to do this for a day or two to eliminate the transmitters as the culprit.
If the problem persists, try removing the wall button wire at the motor head to ensure it is not a short in the wire to the button, then try operating the garage door with the transmitters only. If it stops the problem, replace the wires and test the wall button. It is a process of elimination.


Mar 29, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

How do you clear and re-enter a new code for wall mounted remote


To change the code you need to locate the smart/learn button which is near where all those white wires go. Press and immediately release it and then walk over to your keypad and key in any 4 digit code you like and press enter.

See if this works for your car.

  1. Clear out anything previously programmed into the in-car system from the factory by holding down on the 2-outside buttons simultaneously, until the in-car LED starts flashing rapidly. This may take up to a minute (in most cases, the key should be on auxillary, and/or the car door must be shut).
  2. Decide which button you want to make to be your in-car garage door transmitter. Hold your transmitter up near the selected button, pressing both the garage door remote and the selected in-car transmitter button simultaneously. Hold down on the buttons until the in-car, LED light flashes rapidly. This sets the in-car remote transmitter to be your garage door openers make transmitter, but you are not done. You now need to make this in-car transmitter your personal transmitter.
3. Go to the Learn Button on your garage door opener. The button is usually next to the area where the floppy antenna is connected to the motor head. With Genie it is most often behind the light lens, and an indicator light flashes red when pressed. With Sears or Liftmaster (Chamberlain) it is near, or part of, the terminal screw board, and is a red, green or purple square button with a green, amber or purple indicator light. Press this learn button momentarily. The indicator light will turn on and blink if Genie or otherwise stay lit. For Genie systems, go back to the in-car transmitter button you programmed and press this button 3 or 4 times, or until the door starts moving. This should set your in-car transmitter to your garage door opener. For Liftmaster, Sears, or Linear Megacode press and hold the in-car button you programmed until the garage opener light flashes. Your in-car is now programmed to operate your door.



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

1 Answer

Quantum 3213. the door opener opens neighbors and visa versa


You can follow these instructions to change the code of yours. Might work for you.

NOTE: You must change the transmitter's code before programming the transmitter to the motor head unit.
The following steps describe the process to change a Quantum™ and Classicdrive™ security code.
This process only works fro transmitters with a GREEN LED and a "U" in their model number, such as "02-3047 2B U" or "02-3047 2B UH".
Changing the Transmitter Code
1. Press and hold the button on the transmitter that you want to change. The GREEN LED will flash once and then turn off.
2. Continue to hold the button until the GREEN LED begins to flash (approx. 10 seconds).
3. When the GREEN LED flashes, immediately release the button and then immediately press and hold the same button again. The GREEN LED will now come on steady.
4. Continue to hold the button until the GREEN LED begins to flash (approx. 5 seconds).
5. When the GREEN LED flashes, immediately release the button.
6. The code for this button has now been changed to a new randomly generated code. Do not push the button again until instructed in "Programming Transmitter to Power Head Unit".
7. You must now re-program this transmitter to the motor head unit. See "Programming Transmitter to Power Head Unit".
Programming Transmitter to Power Head Unit
1. Press the PROGRAM button located on the garage door motor head unit once. The PROGRAM STATUS light on the motor head unit will turn on and remain lit for one minute, indicating that it is ready to learn the Transmitter code.
2. Press the same button on transmitter as you did in "Changing Transmitter's Code" above. The PROGRAM STATUS light will turn off indicating a successful learn.
3. Press the same button on the Transmitter once more to operate the door.
4. If you are unsuccessful in programming the transmitter to the motor head unit of if the button does not operate the door or if you wish to program another button to operate a different door, you must change the transmitter's code.
Battery
If the LED does not turn on when button is pressed, replace battery.



Jan 18, 2010 | Universal Garage Wireless Keyless Entry...

1 Answer

I am not able to program my Homelink (car) opener using the Learn button on my Liftmaster Formula I. I used the Rolling Code program. I went through all the steps, indicator light flashed rapidly, I...


  1. Clear out anything previously programmed into the in-car system from the factory by holding down on the 2-outside buttons simultaneously, until the in-car LED starts flashing rapidly. This may take up to a minute (in most cases, the key should be on auxilary, and/or the car door must be shut).
  2. Decide which button you want to make to be your in-car garage door transmitter. Hold your transmitter up near the selected button, pressing both the garage door remote and the selected in-car transmitter button simultaneously. Hold down on the buttons until the in-car, LED light flashes rapidly. This sets the in-car remote transmitter to be your garage door openers make transmitter, but you are not done. You now need to make this in-car transmitter your personal transmitter.
3. Go to the Learn Button on your garage door opener. The button is usually next to the area where the floppy antenna is connected to the motor head. With Genie it is most often behind the light lens, and an indicator light flashes red when pressed. With Sears or Liftmaster (Chamberlain) it is near, or part of, the terminal screw board, and is a red, green or purple square button with a green, amber or purple indicator light. Press this learn button momentarily. The indicator light will turn on and blink if Genie or otherwise stay lit. For Genie systems, go back to the in-car transmitter button you programmed and press this button 3 or 4 times, or until the door starts moving. This should set your in-car transmitter to your garage door opener. For Liftmaster, Sears, or Linear Megacode press and hold the in-car button you programmed until the garage opener light flashes. Your in-car is now programmed to operate your door.

If this doesn't work your car and homelink may not be compatible.


Nov 22, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Hi I have 1/3 hp liftmaster garage door opener that will not open from the remotes but will open with button on wall. I think it is a reciever problem?? any suggestions?/


reset your remotes and your main transmitter after removing and replacing the remote batteries (these use rolling codes that change each time you operate the door) the procedure for doing this is listed on the liftmaster website

Apr 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

All garage door transmitter would not work


The lock is probably engaged. Look at the wall button, the green light is probably flashing. Hold down the lock button for 3 seconds and light should be solid. Your remotes should work now

Oct 24, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

TRANSMITTER IS "DROPING" CODE


This is a very rare condition that I have come across. I believe it's related to a power surge. Replace back-board.
The only other thing I have seen is that someone will replace the opener and not replace the wall button and you only have a doorbell type button instead of the wall button that came with the newer system which has 3 buttons on it one of which is 'lock'.
When the button is flashing the opener is in 'lock' mode and won't 'listen' for any remote control at all (incase your on vacation and someone is trying to hack your opener code) but the wall button will still work.
You need to reprogram the keypad again like you reprogrammed the remotes.

Jul 01, 2008 | Sears Craftsman LiftMaster Chamberlain...

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