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

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Pulling mechansm jammed on 1/2 hp craftsman garage door opener

I have a 1/2 hp Sears / Craftsman garage door opener that is approximately 14 years old. The pulling mechanism which attaches to the garage door moves a couple inches then stops....even with the door not attached. The motor still runs. Motor will not stop until I manually move the mechanism to either end. It seems to be sticking on the track, but I don't know why.

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You have a stripped gear inside the opener

Posted on Jan 18, 2009

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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

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

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Feb 03, 2016 | Building Materials

2 Answers

Stripped big gear in craftsman 1/2 hp 11 years


The part number is 41A2817 and is available at any good door opener service company. It comes with instructions.

Jan 17, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Opener keeps losing code


YOU MAY HAVE A LOOSE BATTERY CONECTION IN YOUR REMOTE.

ANYTIME THE BATTERY CONNECTION IS LOST (EVEN MOMENTARILY) YOU WILL NEED TO REPROGRAM IT.

IF YOU CAN'T FIND AN OBVIOUS PROBLEM WITH THE BATTERY, I WOULD REPLACE THE REMOTE.

HOPE THIS HELPS

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

1 Answer

Where is the emergency release on Sears Craftsman Garage Door?


You can find exploded views and parts lists of the opener at SearsPartsDirect.com

I just checked.


Feb 13, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

1/2 hp craftsman garage door opener won't open when cold


I called Sears garage door customer service number due to the same issue. The test is to disengage the opener drive by pulling the emergency disengage handle, then open the door half way manually and then let it go. If it stays there it is a door/track/lub problem; if it drops down and closes its a garage door opener problem. Mine stayed open half way during this test so it was a door/track/lub problem. After using silicone spray on all tracks, rollers, and springs mine has been working great. Good luck.........

Dec 10, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opener does not work correctly


Make sure the door springs on the door are ok.Unhook the opener from the track by pulling the red handle rope on the track,make sure the door moves up and down freely.There is a up-force adjustment on the end of the opener that the small wires run to,you will see 2 slotted adjuster screws,find the one labeled up force,turn it clockwise a little bit(1/16th of a turn).Also there is a plastic gear inside the case that gets dry,unplug the opener,remove the 8 screws that hold the case on and lube it with a lithium grease,see if it is worn badly while you have the case off.

Feb 18, 2008 | Sears Craftsman LiftMaster Chamberlain...

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