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

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Press button to open garage door, doesnt work

Used release lever to disconnect gargage door. Tried to reconnect it automatically by simply pressing the button when I wanted to reconnect. It has worked in the past. Didnt work this time. Noticed that the chain had come off the sprocket. Loosened the chain and put chain back on sprocket. Tightened it up again. Unit attempted to work but was stuck somehow. I checked to ensure that there the cable and chain were not catching on anything. NO-Good. Then I disconnected the chain all together to see if the motor would turn freely. Hit the button, and gears spin temporarily then the unit starts clicking and stops., only goes on for a few seconds. ((( NOT SURE IF THERE IS AN ALLIGNMENT PROBLEM OR IF I WRENCHED SOMETHIN WITHIN THE HOUSEING. DONT EVEN KNOW HOW TO GO ABOUT TROUBLESHOOTING THIS)) HELP IS APPRECIATED.

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May have stripped gears. take off light panel and look inside. white powder. bad gears. repair if yu are handy, if not, buy new unit.

Posted on Jan 22, 2009

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MY SON CHANGED THE CODE FOR THE GARAGE DOOR OPENER AND NOW THE REMOTE DOESNT WORK


He may have erased the memory of the opener. To reprogram it hold the button down on the remote and then press and immediately release the smart/learn button on the rear of the motor unit.

Apr 18, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

When i installed my remote control for my garage door, the wireless keypad code disconnected and i need the instructions to make it work again (and make sure that both work again)


Probably what happened was you held the smart/learn button in for too long and erased the memory. Always press and immediately release that button. To program the keypad:

Press and immediately release the smart/learn button on then walk over to your keypad and key in your 4 digit code and press enter. You have 30 seconds to complete this.

Jan 18, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a Craftsman keyless gargage door opener model 031D0431. We just moved in and would like directions on how to recode the keyless entry. One more question...if I recode the keyless entry, do I have...


Coding the keypad will not affect the remotes if you follow these directions.

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 a four digit code and press enter.

Oct 03, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I recently had to change the outside entry code on my garage door and since then my gargage door remote will not open or close my door. The code works fine, but the remote does not. The batteries seemed to...


You might possibly have held the smart/learn button in too long and erased the code for the remote. Hold the button down on the remote and then press and immediately release the smart/learn button. This should program it for the remote. Now make sure the keypad is still working.

Oct 21, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

How do you reset your codes in the liftmaster/remotes. ours goes up and down varies times of the day,found out our neighbors remote is doing it. all new houses where we live have the same garage door...


press and hold learn button for 10 seconds and then reprogram your remotes by pressing and release learn button and then press and hold remote button. The big lightbulb on the motor will flash once.

May 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

How do I reconnect the carriage?


with the power back on .. push the remote control.. and engage the garage door troley with the carriage

Dec 19, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My Craftsman 53684 keyless won't work with my Craftsman 53930DM.


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.

Nov 30, 2008 | Sears Craftsman LiftMaster Chamberlain...

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