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

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Garage door will not close with controller

Garage door will open with door opener,and manually with keypad.
it will also close  manually when pressing and holding keypad (first it will flash lights as if sensor detects something,but there is nothing in the way)
it will n ot however close with door opener at all.
please help!
i have 2 door openers " clicker" and both can only open the door.

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Problem is in eyes. are they clean. aligned . led on each is lit. aligned. that is your problem. they rarely go bad.

Posted on Jan 15, 2009

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I have a Craftman Garage Door Opener Mod#139.53650SRT. It closes completely then goes back up. I replaced the sensors @ the sides of the door to no avail. I have tried to adjust the up and down on the side...


I agree with the closing resistance may be set incorrectly, all openers have a safety feature that senses if something is keeping the door from closing, this is back force, you set the sensitivity at the back of the opener motor control, it is a little dial, reduce the setting just enough to stop the door from kicking back open when it closes, I had this very same problem with my craftsman and this adjustment fixed it.

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What does the purple button light flashing on 1/2 horsepower craftsman garage door opener


I think the adjustment mode is on.

For example, that's from Craftsman manual:

""
Setting the Force
The force setting button is located on the left panel of the motor unit. The force setting measures the amount of force required to open and close the door.
1. Locate the purple button on the left panel of the motor unit (Figure 1).
2. Push the purple button twice to enter the opener into Force Adjustment Mode (Figure 2). The LED (Indicator Light) will flash quickly.
3. Push the remote control or control console (Figure 3). The door will travel to the DOWN (close) position.

""

Actually, you should just read carefully your garage door opener unit's manual.

Craftsman Garage Door Opener Remote

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Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: I can close the garage door using the keypad, but ...


You may just have a weak battery in the keypad or the keypad is going bad and losing range. This is an indication of a weak signal.

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Make sure the door sensors are pointed at one another. Tweak them if necessary.

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Craftsman Model 139.53684 Security+ Keyless Entry Garage Door Opener... Green light flashing on door control push button. Remotes no longer work. Can open and close garage door from keypad. Why is light...


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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.

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I have a jackshaft garage opener, and the open/ close button on the wall do not work. I can manually press the relays to open and close the door. I want it to work right.


Try removing the wall button and the two wires on the rear. Touch them together quickly and see if the opener works. If it does you have a bad wall control. If not you have either bad wiring or a bad logic board.

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Is your door open or closed? If you release the door is it easy to open and close manually? Does the opener run with the door released?

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1 Answer

Garage door will only close with keypad code it will not open


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

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