My craftman 139.52606 opener does not have a learn button to set pin on keypad. I had keypad working at one time but since I changed the battery I can't rember how to reset the keypad.I also changed the dip switches tring to get a differant remote to work. the remote works fine just not the keypad. HELP

How to change or program code on your Craftsman Liftmaster keyless keypad made by Chamberlain.

1. Program using the "Learn" Button

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 button when the motor unit lights blink. It has learned the code. If light bulbs are not installed, two clicks will be heard.



Program using the Multi-Function Door Control

NOTE: This method requires two people if the Keyless Entry is already mounted outside the garage.

1. Enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold ENTER.
2. While holding the ENTER button, press and hold the LIGHT button on the Multi-Function Door Control. Both of these should now be held down at the same time.
   
3. Continue holding the ENTER and LIGHT buttons while you press the push bar on the Multi-Function Door Control (all three buttons are held).
4. Release buttons when the motor unit lights blink. It has learned the code. If light bulbs are not installed, two clicks will be heard.

Change an Existing, Known PIN

If the existing PIN is known, it may be changed by one person without using a ladder.

1. Press the four buttons for the present PIN, then press and hold the # button. The opener light will blink twice. Release the # button.
2. Press the new 4-digit PIN you have chosen, then press ENTER.

The motor unit lights will blink once when the PIN has been learned.

Test by pressing the new PIN, then press ENTER. The door should move.

Your new Keyless Entry must be programmed to operate your garage door opener

If what you are saying is you want to change the code in the keypad do 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.

The simplest way to program the keypad is to press and immediately release the smart/learn button and then walk over to the keypad and key in your 4 digit code and press enter. If this doesn't work the keypad is bad or you have the wrong keypad. You don't say why you are programming everything so I am guessing about the wrong keypad part.

You can try programming the keypad but I have a feeling it has just quit working. To program it: 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 PIN and press enter.

first step can you change codes in one of the openers, or try the smart button of one

One of your units has reverted from "rolling code" to "billion code" and as you have found they will each work but will not work with each other. The problem is finding out which unit reverted. The most common one is the hand remote but that could be wrong.

having all the remotes you want programed with you, find learn button on back of opener. hold button until little light goes out- no remote will work now, with each remote Press learn button once,Press big button on remote-light bulb on opener will blink on/off if bulb is working-do this each hand held-keyless is same way, put you 4 #'s in HOLD enter button-light bulb blinks on/off you have 15 sec. for each time you hit the learn button. also best to start off with new 9 volt battery before you start programing

You need to press and release the learn botton (don't hold it or you will clear all the codes)
If the light bulb(s) on your operator are on the front and/or back, the learn botton is on the back of the operator. If the lights are on the sides of the operator then the learn botton is on the right side (looking from the back of the operator and facing the garage door). 
After you press the learn button you have about 30 seconds to press in the new 4 digit code in your key pad then hold the enter button until the light on the operator blinks (about 2 seconds). If this does not work check the battery and try it again.

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.

when you are programming , how long do you push LEARN button for, If you push for 6 or more seconds, you are wiping out all code, Push for 1 second to add a remote or keypad,