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

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Garage door opener

the light will not go on when door is activated from remote or switch mounted on wall in garage.

I thought the light was burned out, bulb was replaced still not working, made sure bulb was ok light will not go on.

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  • fordydan Feb 23, 2008

    I have the exact same problem with 18 yr. old sears unit.



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  • 143 Answers

Unplug the unit and look inside the socket. there is a copper lead you can bend up as it might not be getting a good contact. If that is not it you can start by replacing the socket itself from the manufacturer. If that does not do it then you will have to replace the logic board. Whether you reair or replace get a surge protector on this unit 900 joules or higher. Thanks BB

Posted on Sep 03, 2010


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1 Answer

Why door is opening without being activated by remote opener or inside garage opener;something is activating the open/close command;ther is nobody around or a neighbour that may interfere with his doo

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I have a door with two buttons and remote but only

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Jan 10, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door wont work with remote

If the small light in your wall control is blinking it is in the lock mode. Press and hold for 3 seconds the button with the icon of a lock. This will toggle the lock function off.

Aug 04, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door will open with remotes, but not with the wall switch

Sure sounds like the wall control is bad. Very common problem.

Jun 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sear garage door wall mount contol light keeps blinking

Hold the button with the lock icon in for 3 seconds. This should toggle the unit off vacation mode and your remotes will work.

May 31, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I think I've accidentally activated the lock feature...

does logic board on motor have a small pushbutton or dip slide switches? If pushbutton, push it for 10 seconds. let do. panel light stop blinking? Unit somehow got into lock mode, even though you do not have lock button. If this has stopped light from blinking, you now have to code remotes and or keypad back in. Push the little buton for 1 second and push a remote. Light bulbs on unit should blink. Take next remote (or keypad) and repeat this sequence for each one. Let me know. If you have safety beams, liftmaster should help you. w/o beams they will not support.

Feb 11, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Neither remote control will open door but wall mounted button wil

Make sure the code set inside the remote is the same as in the main reciving unit code.

Dec 06, 2008 | Sears Craftsman LiftMaster Chamberlain...

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