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

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The light on my Chamberlain garage door opener does not work. I replaced the fixture that the bulb screws into but it still does not work.

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Try unplugging the opener, removing the bulb and pulling out on the center contact in the socket with a small screwdriver.

Posted on Apr 26, 2010

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1 Answer

How do I replace sears side light bulb on door opener


To replace the bulb you have to remove the plastic cover which is held on with tabs and one or two sheet metal screws (usually on the top of the unit). The bulb is in a standard light socket. It is best to replace it with a bulb that resists vibration such as a ceiling fan bulb.

Jul 14, 2014 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

The light bulb on my opener is off when it should be on. If I screw the bulb in or out slightly, it turns on and flickers a bit. When the timer times out, the light goes out. If something crosses the...


Unplug the opener and remove the bulb. Use a small screwdriver to pull out on the center contact in the light socket. Replace the bulb and plug in the opener.

Nov 07, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

The lights on my liftmaster garage door opener suddenly stopped working I have already replaced the old light bulbs with ones I know work but the lights are still not working.


Unplug the opener and remove the light bulb. Using a small screwdriver lift up on the center contact of the socket. Replace the bulb and plug the opener in.

Oct 18, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Lights do not work on the garage door opener. what could be the problem?


Unplug the opener and remove the light bulb. Pull out on the center contact in the light socket. Replace the bulb and plug in the opener.

Jun 15, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Light bulbs burn out constantly on Chamberlain garage door opener


Get an electrician to measure voltage where the light is plugged in. It sounds like you have too high a voltage.

Aug 23, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Light quit working 2 days ago. Tested all leads, no power to fixture from circuit board. Bulbs test OK


The light is controlled by a relay on the circuit board. The problem is there are no schematics available and individual parts are not available.

Jun 24, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door will not open


Sounds like a loose connection inside the unit. When you move the light fixture on the motor and get it to light, the contact is reestablished, possibly being a loose wire. With the vibration from the operation of the opener, the connection will lose its contact again and the motor ceases to function. Have an electrician give it a look or disable it's power so that you can remove the cover(s) and investigate yourself.

Feb 07, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

1/2hp Craftsman Garage door opener light bulb


If you are getting a click the relay on the board sounds like it is working. Sometimes the contacts in the light socket gets burn spots on them. Try unplugging the unit, unscrewing the bulb and with a small scrapping tool (small flat screwdriver) scrap the bottom contact and the contact on the threads. Bend the contact on the threads a little too make better contact with the bulb. Screw the bulb the bulb in completely. If this does not solve your problem the only the left to do is to replace the logic board.

Jan 08, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage door opener light bulbs burning out


You can replace the socket itself. Unless there is extreme vibration this will be your best bet. If there is vibration then use some rubber washers to lessen this. You can get replacement parts at chamberlain.com. Thanks BB

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

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