Outside keypad will not open or close door,but the control inside works. put new battery in no help

Do you mean the numeric keypad is no longer controlling the garage door? If so, have you changed the battery for the keypad? Frequently, if the battery is low, the keypad will stop working when the door is closed but works to close an open door. On most Chamberlain garage door openers, this is a 9V battery. You may need a small Philips screw driver to open the battery compartment at the bottom of the keypad.

After changing the battery, try the learn code procedure again. I've found it easiest to have two people involved when programming the keypad to the garage door opener. One handles the Learn button and the other types in the desired code.

I hope this helps.

Cindy Wells

The inside button is hard wired. The keypad is a small radio transmitter. If the battery in the keypad is good and it doesn't work when you put in the code it has probably just quit.

Have you tried adjusting the antenna position? If you can't find a good position for the antenna, you may want to extend it and bring it close to or outside the garage door opening.

It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.

UNPLUG THE UNIT AND WAIT 5 MIN.
WHEN YOU PLUG IT BACK IN CLAER ALL CODES BY HOLDING DOWN THE PROGRAM BUTTON FOR 20 SECONDS.
NOW TRY TO PROGRAM EACH REMOTE AND KEYPAD - IF THERE IS STILL A PROBLEM CHANGE THE BATTERIES AND REPEAT THIS PROCEDURE.

I HOPE THIS HELPS

try new code with 4 new numbers. maybe a key is worn and cold in morning is not helping,

It sounds like this remote has lost its program! you will have to reprogram it!I hope this helps ya!

Anytime a door opens and/or closes randomly or doesn’t work consistently I look for a smashed wire between the motor unit and the wall button.

If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door or interfere with the remote signal.

Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.

The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.

The test is to disconnect the push button wires at the power unit. If the self operation / interference stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.

In your case the expansion of the wall in the afternoon may be enough to cause pressure on the wire to increase the problem – works in the morning but not the afternoon.

Also after you change the batteries you need to reprogram the remotes.

HOPE THIS HELPS

Have you replaced the battery in your keypad? That should take care of the trick.

close the garage door, press the lock button so that's it's blinking, press the red reset button on the craftsman, then press the remote.... that should work