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

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Have a Craftsman 1/2 horsepower garage door opener. When oporating the chain does not move so door will not open.

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You have a bad drive gear. It is white nylon and is just in front of the motor. The part number is 41A2817 and is available at any good door opener service company. It comes with instructions.

Posted on Feb 06, 2010

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Posted on Jan 02, 2017

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Don't know Mod. No. lost installation manual, approx. 5 yrs. old Need installation manual.


About 496,000 results (0.43 seconds) Search Results

    [PDF]GARAGE DOOR OPENER Model 3265 1/2 HP ... - LiftMaster

    www.liftmaster.com/.../en.../tucmanuals/114a3044.pdf Chamberlain GroupFasten the manual near the garage door after installation. .... This garage door openerhas been designed and tested to offer safe service provided it is installed, ...

    Manuals Download Craftsman Garage Door Opener Model ...

    www.craftsman.com/search=manuals%20download%20crafts...

    CraftsmanCraftsman has the best selection of Garage Door Openers in stock. Get the Garage Door Openers you want from the brands you love today at Craftsman.

    Craftsman 1/2 HP Chain Drive Garage Door Opener - Sears

    www.craftsman.com > ... > Garage Door Openers

    Craftsman1/2 hp Chain Drive Garage Door Opener Opens by Remote, Inside and from Car Enjoy a great end to every day by ... Owners manual - English (Warranty).

    Free Craftsman Garage Door Opener User Manuals ...

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1 Answer

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About 496,000 results (0.43 seconds) Search Results

    [PDF]GARAGE DOOR OPENER Model 3265 1/2 HP ... - LiftMaster

    www.liftmaster.com/.../en.../tucmanuals/114a3044.pdf Chamberlain GroupFasten the manual near the garage door after installation. .... This garage door openerhas been designed and tested to offer safe service provided it is installed, ...

    Manuals Download Craftsman Garage Door Opener Model ...

    www.craftsman.com/search=manuals%20download%20crafts...

    CraftsmanCraftsman has the best selection of Garage Door Openers in stock. Get the Garage Door Openers you want from the brands you love today at Craftsman.

    Craftsman 1/2 HP Chain Drive Garage Door Opener - Sears

    www.craftsman.com > ... > Garage Door Openers

    Craftsman1/2 hp Chain Drive Garage Door Opener Opens by Remote, Inside and from Car Enjoy a great end to every day by ... Owners manual - English (Warranty).

    Free Craftsman Garage Door Opener User Manuals ...

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1 Answer

Craftsman 1/2hp garage door opener works fine to open door but to close I have to hold button down. If not, door won't move and lights flash 10 times.


10 flashes mean sensors are obstructed... something is in the way of the door or they are not facing each other. Clear the obstruction or realign the door and it will work.

Aug 27, 2014 | Craftsman Garage Door Opener 1/2 HP Chain...

1 Answer

Garage door will not open manually or automatically/normally


The color of the sensors is normal and have nothing to do with your problem. If you cannot raise the door manually and it is released from the opener then you have a door problem. If you mean the door won't open and you cannot get into the garage to release the opener then you are going to have to call a door technician for help. He will get in.

Feb 08, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opener is malfunctioning


It sounds like the gear and sprocket assembly has gone bad. This would cause the symptoms you have.

Sep 16, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman opener motor works, but chain does not move.


If the motor is working but the chain does not move you must remove the cover on the motor and check to see that the chain is on the sprocket. If the chain is on the sprocket and the sprocket is not moving but the motor shaft is moving then the sprocket must be retightened onto the motor shaft.

Apr 20, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Craftsman GDO Will not close


readjust the sensor controls on the side of the unit

Dec 28, 2007 | Sears Craftsman LiftMaster Chamberlain...

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