We have a chamberlin liftmaster model 1245R (1/3 hp) with a 975LM wireless, keyless entry keypad... when we enter our (pre-entered) pin, the lights blink on the numbers, but the door won't open the first time... we normally have to enter the code several times and then work the "enter" pad around to find that sweet spot, before the door will open... we bought the house two years ago, so believe the key pad is probably 4-5 years old... would replacing the key pad solve this frustrating problem?? DPMC

Hi, The link below is a user manual for a liftmaster 3220, Page 32 is a Keyless ENTRY PIN (To add, remove or change a Keyless entry pin), I hope this helps.....CHEERS..
https://www.liftmaster.com/CatalogResourcesV3/en-us/shared/files/tucmanuals/114A3077.pdf

It will only take a 4 digit program code. After you program the code, and then enter that code to open the door, hit an additional number on the keypad. Some need the additional digit to act like an 'enter' key.

Hello there,
It actually depends on what you are trying to program. And these instructions apply only to openers that do not have dip switches on them.
Remotes: push don't hold the colored learn code button all models have different colors. After pushing the button hold the remote behind your back and push it three times. On the third time the door should run.
Keyless Entry: Program the code you want into the keyless. Push the colored learn code button and then enter the code and push enter three times slowly. on the third time the door should run.
Home-Link. Hold the two outer buttons until the blinking pattern changes. Then hold the button you wish to program and point and click your remote at it. Push the colored learn code button and push the homelink button three times.
There are two models of the Wireless Keyless Entry System, the 740CB and the 940CB. The 940CB is for use only with Security+® garage door openers having an orange/red smart/learn button. The 740CB will work with all openers manufactured since 1990 that have a yellow, white, gray, or green smart/learn button. It will not work with Security+® openers.
To program the keyless entry, first locate the smart/learn button. On our chain drive models, this button is on the end farthest from the door. On our belt and screw drive models, it is on the right side as you face the door from the opener. You simply press and release the smart/learn button. You now have 30 seconds to enter your four digit PIN number into the keypad and hold the enter button for five seconds. Wait one minute and test the keyless entry by entering your four-digit PIN number and pressing enter.
With some Security+® models, you can also program your Model 940CB Wireless Keyless Entry without climbing a ladder, right from your Multi-Function Control Panel. Simply enter your pre-selected code and press and hold the enter button on your Keyless Entry. Then press and hold the light button and the pushbutton on your Multi-Function Control Panel. The garage door opener lights will flash to confirm that the Keyless Entry has been successfully programmed.
Hope this helped you solve the problem. All the best my dear friend. Elect_Comp

You need to give the proper model number. It is on the end of the motor unit closest to the door. Also the manufacturer.

Try this:

Locate the smart/learn button on the rear of the motor unit near where all those white wires go. Press and immediately release this and then walk over to the keypad and key in any 4 digit code you like and press enter.


If this doesn't work it is most likely the keypad has just failed.

If your keypad doesn't have the enter button it is an earlier model and will not work with what you have now. You will need to call your Liftmaster dealer to get the latest model.

The keypad lights should blink after the enter button is pressed. It is not necessary to hold the enter button. Sounds like a bad keypad.

We have a Chamberlain Whisper Drive Plus. The keyless entry stopped working, suddenly. I have changed the battery, not the problem. I cannot get it to work, and cannot get it to reprogram. The keypad lights up when buttons are pressed, but when I press "Enter" the whole keypad flashes for about 30 seconds and then just goes dark.

To program the keyless entry, first locate the smart/learn button. On the chain drive models, this button is on the end farthest from the door. On the belt and screw drive models, it is on the right side as you face the door from the opener. You simply press and release the smart/learn button. You now have 30 seconds to enter your four digit PIN number into the keypad and hold the enter button for five seconds. Wait one minute and test the keyless entry by entering your four-digit PIN number and pressing enter.

With some Security+ models, you can also program your Model 940CB Wireless Keyless Entry without climbing a ladder, right from your Multi-Function Control Panel. Simply enter your pre-selected code and press and hold the enter button on your Keyless Entry. Then press and hold the light button and the pushbutton on your Multi-Function Control Panel. The garage door opener lights will flash to confirm that the Keyless Entry has been successfully programmed.

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. You can find additional information at:
http://www.usdoorcontrol.com/kbase/liftmaster-main.html#14

easyer then that , you die! Open your garage door, take out the step ladder, a chair or get up on *********** in law's back, (here's your chance to be on her back for a change) press the read button of your unit (motor) a led should light up and on the key pad, key in the new 4 digits code and press enter, the light of the unit should blink javascript:; Post Solution