Purchased a craftsman wireless keyless entry pad 53684. The opener has a red smart button. The remote and keyless won't work together. Only one will work. Do we have the wrong entry pad

Are you sure you purchased the right keypad? The model you should have is 139.53681

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

Reprogram all features of the garage door lift system.

Without a model number no one can tell.

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.

Get all the remotes together.
On the end of the GDO (where the wires are) is a "Smart" button.
Press and hold the smart button for 10 seconds (until the LED goes off). This will clear the memory.

Now press and release the smart button, take one of the remotes and press one of the buttons (usually the top, largest one). The light should flash on & off.
Perform this same procedure for all other remotes. Also do the same with the keyless entry. Always press the buttons slowly on the keyless entry. It is easy to mispress a button.

As you may know by now there are keypads and then there are keypads. They must be made to work together as there are some that are not compatible. Posting your model numbers might help a little.

If the following instructions don't work and you have a good battery the keypad has failed.

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 your keypad and key in your 4 digit code and press enter.

hit learn button for 10 seconds. now nothing will work except wired buttons. Hit learn for 1 second and put in yur 4 digit keypad code and hit enter, light on motor will blink twice. hit learn again for 1 second and push button on remote. again bulb will blink. continue pushing learn for 1 second and adding another remote.

I've never seen the first set of steps you mention. You always need to press the "learn" button first so the opener will be in the mode to capture the new code. As far as I know it is not necessary to hold the Enter button on the keypad (at least I never have). While the "learn" LED is lit on the opener, just key in the new code and press Enter.

Maybe you should try clearing the receiver first by pressing the "learn" button and holding it until the LED either goes out or starts flashing (depends on model). Then try reprogramming. Maybe the little computer is confused.

If I am correct, there is a green button on the opener. Hold that down until it stop blinki ng. Once it has, pres the opener. It should read the code and work the next time you hit the opener remote.
If not, sorry. This has worked for me