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

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How can I make the liftmaster higher to fit my van double car garage with liftmaster professional Thanks a lot Rob

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If you have a garage door that is higher than the normal 7 foot there are 8 and 10 foot door extensions available. Contact your dealer.

Posted on Aug 31, 2010

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Posted on Jan 02, 2017

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If you have a Chraftsman/Liftmaster not working


If you have a Chraftsman/Liftmaster:
1.Check to see if the door is running correctly.
A. Run the door down and pull the emergency release. See if the door will run easily by itself.
1. If it runs hard by hand try lubricating the rollers and hinges with silicone spray or some form of lubricant (not WD 40)
2. If the door is heavy and falls back to the ground, you probably have a spring issue (either broken or needs more tension) in this case call a professional door repair company in your area.
B. If the door runs fine then check the up and down force on your operator (the box that hangs from the ceiling and reads Craftsman). If the light(s) on your operator go from front and/or back, the force adjustment screw is on the back of the operator. If the lights are on the sides of the operator then the force adjustment screw is on the right side (looking from the back of the operator and facing the garage door). Turn the light blue adjustment screw with the up arrow to a higher number.
C. If this does not solve your problem the top bushing could be going out of your operator. Open the case and see if a lot of black filings are on the top of the big gear. If so the gear assy. will have to be replaced part # 41C4220A

on Jan 04, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Liftmaster Professional 1/2 horse model # 41A5483 installed in 02 Learn light flashes 4 times. When openers are hit in cars (2 Chrysler vans use built in Homelink Systems built into sun visors, one car...


check the settings on the unit itself sometimes if you have it set up to come down too rapidly it will cause it stop and go back up because it thinks its hit something.

Apr 10, 2011 | liftmaster Garage Door 1/2 Hp

1 Answer

Where can I get a copy of the owners manual for Liftmaster Professional Formula I garage door opener?


Go to this website and put in your model number.

http://www.liftmaster.com/consumerweb/service/manuals

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

1 Answer

The garage door has power coming to it . When I press the remote the unit makes a humming sound but nothing happens at all


clicking can be an overheated motor from trying to much. other idea is troley opened too far and lodged against bolt on rail by motor.

Dec 17, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

How to add additional garage door opener safety sensor


cant be done. put parking bumper on flor so you know you pulled in far enough. you are only one I know who installed parking laser. I don't. If customer isnt home when I install gdo, how do I aim laser. What about when they get new car. They want you back for free to adjust, No way.

Nov 24, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

LiftMaster Garage Door Opener


IF YOU ARE TALKING ABOUT THE ROLLER ON THE DOOR - THE TRACK IS TOO WIDE ALLOWING THE ROLLER TO COME OUT. USE THE CLAW END OF A HAMMER TAP THE TRACK MOUNTING BRACKET AT THE WALL TO MOVE THE TRACK IN CLOSER TO THE EDGE OF THE DOOR

Aug 28, 2008 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Chamberlain Liftmaster Professional 1/2 HP


Okay...upon further inspection, my left spring has broken in two. Going to call around for some quotes to replace the spring. Thanks for the suggestions.

Jul 21, 2008 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Changing PIN


ok... got it " LiftMaster Professional Model # 2575". Is this correct...?

Kindly wait & I will post back here again...

Regards,
micro

Jul 16, 2008 | Sears Craftsman LiftMaster Chamberlain...

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