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

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On a liftmaster lm 1140 garage door opener what resistor do you cut to disable the receiver

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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: Sears Craftsman Garage Door Opener Wireless Keypad Model and a LiftMaster Chamberlain Professional Garage Door

Hello,

I had the same frustrating dilemma with my Craftsman LiftMaster garage door and Keypad, Model 139.53754-01 (dated 10/06; and has the # 315 MHz).

To resolve “the dilemma”, grab your keypad, climb up on a ladder to access the garage door opener’s motor unit. On the right side of the motor unit, remove the white plastic casing by pressing buttons on each side and pulling down. This will expose the programming area, and for our purposes, the “Learn” button.

1. On the motor unit, press and release the “Learn” button. The Learn indicator light will glow steadily for 30 seconds.

2. Within 30 seconds, enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold the ENTER button.

3. Release the ENTER button when the motor unit lights blink. The code has been “learned”/stored/activated.

Good Luck, and I Hope this Helps!
Gail
For possible future reference:

How to change an existing, known PIN
(Changing an existing PIN can be done with the wireless remote keypad, and does not require access of the motor unit.)

From the keypad:

1. Enter the four digits of the present PIN, then press and hold the # button. The opener light will blink twice. Release the # button.

2. Enter your new 4-digit PIN and press Enter. The motor unit lights will blink once when the PIN has been “learned”/stored/activated. Test by entering the new PIN, and pressing Enter.

Posted on Jun 24, 2008

  • 2 Answers

SOURCE: Chamberlain Liftmaster Professional 1/2 HP

Okay...upon further inspection, my left spring has broken in two. Going to call around for some quotes to replace the spring. Thanks for the suggestions.

Posted on Jul 25, 2008

  • 3197 Answers

SOURCE: I have LiftMaster garage door model 41A3039 and

To program the keypad, first unplug the garage door opener from the electrical outlet. Next remove the nameplate from the console that the keypad plugs into and locate the program/operate switch. Flip the switch to program. Next enter your desired four-digit PIN number into the keypad. Slide the switch back to operate and plug the garage door opener back in. The keypad should be programmed.

Posted on Jul 13, 2009

  • 3197 Answers

SOURCE: Liftmaster wireless keypad closes but won't open the door

If you are sure the battery is good you have a bad keypad. The signal strength is so weak it will not penetrate the door.

Posted on Aug 25, 2009

  • 3197 Answers

SOURCE: my garage door opener (liftmaster 1265) buzzes

Remove the cover from the motor unit and check the drive gear. It is white nylon and is just in front of the motor. Most likely stripped.

Posted on Apr 05, 2010

Testimonial: "Don0930 - Yes, gear is stripped. Will be purchasing replacement gear instead of new unit. Thx!"

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1 Answer

How to synch remotes on a Liftmaster 1/2 HP Security + garage Door opener


Click the learn button on the receiver followed by the remote. See e.g. http://www.liftmaster.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A4109.pdf

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On key pad377 lm enter button falls off can this just be glued on ?


As long as you are careful with the amount of glue it should be okay. Can't hurt to try.

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1 Answer

Same as above....


check to see if the battery needs replaing or if someone cut or pushed the wire that hangs down about 6in on the back of the opener.

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1 Answer

What model # is a substitute for model 1260 lm


Models 1240, 1245, 1246 1255, and 1256 are the same except for the motor size.

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