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

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Liftmaster garage door opener will only work at wall unit

Garage doors only opens and closes from wall unit, from the wall unit if I release the button, the door will stop and auto reverse the door, i reprogrammed the remotes, they will open the door, but when i try to close the garage door, the light on the liftmaster unit will flicker.

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Check electric saftey beams. shovel blocking them. dirty. aligned (LED on in each unit)

Posted on Jan 15, 2009

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With my door closed, i push door button to open and the chain and opener continues inthe closing mode. any help?


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Jan 10, 2016 | Sears Craftsman LiftMaster Chamberlain...

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I have a 3/4 horsepower liftmaster garage door opener, both the remote and the wall button won't close the garage door but both will open the garage door. however, the garage door will close if I hold...


If when closing the door it reverses to the open position and the main light flashes 10 times it is a door sensor problem. Make sure the small light on each sensor is on and not flickering ever so slightly. (check closely) Tweak them a little even though they may seem to be okay. Check for 5vdc between terminals 2 and 3 on the rear of the motor unit. If there is no voltage or if it is greater than 6vdc the logic board is bad.

Sep 26, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My liftmaster will open with the remote but to close the door, we have to hold down the wall unit. It starts to close, jerks to a stop, then we have to press and hole the button and it closes.


Hi, it is probably the safety photo beams out of alignment or not working, when this happens the garage opener goes into 'dead man' operating mode, ie you need to keep the button pressed for the door to operate. You can find user and installation manuals here - Liftmaster Garage Door Opener Installation Manuals

Sep 07, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door opened but will not close. I opened


I think the trolley has jammed against the bolt just in front of the motor unit. Remove the bolt and then run the door until it is closed. With the door closed locate the 'up limit' control on the side of the motor unit. Turn this 2 turns in the opposite direction of the arrow printed on the cover. Replace the bolt.

Sep 01, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have 2 liftmaster 3245. The hand held remotes were working fine then stopped. I replaced the batteries and turned of all electrical/RIF close by. Still not working. Both cars operate the doors with no...


You need to reprogram the remotes by briefly pushing the learn button on the garage door opener until it flashes once, then release the button on the garage door opener.

Now press the remote button once until you hear the garage door opener click, now press the remote button once again and the remote should be programmed to work for that garage door opener.

DO NOT press and hold the garage door opener learn button for more than 10 seconds or you'll erase all programs and have to relearn all the remotes, including your car ones.

Hope you found this very helpful and best regards.

Aug 06, 2009 | liftmaster Chamberlain Garage Door Opener...

1 Answer

Chamberlain Liftmaster Pro. Garage door Problems closing


The sensor eye - or more likely, the other end, the sensor light - probably got knocked out of alignment. The eye should have an LED on it - possibly one that glows green when it's ready to close or red when it's obstructed or out of alignment. Try adjusting the light until the LED on the receiver glows green.

Dec 07, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Liftmaster garage door opener problem


stop adjusting. you are doing right thing. unit will not run down w/o eyes so removing wiring did nothing. you gave clue when yu said they were folloded. buy new set of eyes.

Oct 04, 2008 | Sears Craftsman LiftMaster Chamberlain...

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