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

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Broken spring my garage door won;t open - think I see the problem ?the spring overhead in the middle is broken ? any one know how to fix it?

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Or call Sears; overhead door quite differant and might not respond to business and liability reasons. Similarly, a response here would certainly exceed the bounds of propriety in that there is not way to provide the completeness to ensure you would not be seriously injured. The task you envision can be DIY but considering you question, seems best left to a qualified installer from Sears. For future reference, do not fail perform scheduled maintenance on the opener including lubricating the torsion spring over the door.

Posted on Jan 14, 2015

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Call an overhead door company. the springs are under high tension. Better safe than sorry.

Posted on Aug 26, 2009

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1 Answer

When I go to open the garage door the door only raises 18 inches & stops. I press the remote again & it closes. I sometimes have to open/close the door 10 times before it opens fully.


Is the main spring at the top of your door broken or has it unwound so there is too much pressure when trying to raise the door up. Check that out also check and see if you unlock the door with the rope that's on the overhead connection where the opener looks on the door See if the door will open if you try to open by hand. If its hard to push up either the spring is bad or you are seized some place.

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Can I fix a broken garage door extension spring myself ?


Yes you can!
Raise the door all the way. place clamps or vise grips on the frame to keep it safely up.
Very carefully, remove the unbroken spring and get a pair of new ones from the nearest overhead door company.
Install the new springs and then and only then remove the clamps.

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2 Answers

My Sears 3/4 HP garage door opener opens the door about 1', then will not go past this point. It will close it as well. I have taken the door off the chain and the chain will run without the door...


1. disconnect the door from the chain. 2. inspect the door again, try oiling the rollers and joints. It is the chain that lifts the door. Try manually lifting the door. If it still does not lift open, it is the door and not the Opener unit. 3. Although you don't see kinks, look for any obstructions eg. the track. 4. Make sure the track has not lossened out at any point. 5 If you can lift the door,. connect with the chain. Goog luck. Basically I think it is the door mechanism that has some how misalligned.

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1 Answer

My garage door will not open but approx. 8" , no cable broken , chain on track. Today I found that one spring is broken. how hard is it to replace.


I have built many garage doors and installed many door openers. The typical garage door spring is not that hard to replace. I have to have 2 steel rods 1/2 inch in diameter to slowly tighten the spring.

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1 Answer

Door latch


see this causes and fix it. God bless you
Open Lever If the microwave door won't open the open lever might be broken. This part can be replaced separately.

Door Spring If the microwave door won't open the door spring may have broken. The door spring is located inside the door and keeps downward pressure on the door hook.

Door Latch If the microwave door won't open the door latch might be broken. The door latch is inside the microwave. The door hook, which is part of the door, engages with the latch to keep the door closed during operation. If the door latch or actuator breaks the door may not open.

Door Hook If the microwave door won't open the door hook might not be releasing properly. The door hook is installed inside the door and normally releases when the door is opened. The hook is made of plastic and will break over time. When this happens it will need to be replaced, it can't be repaired.

Button Spring If the microwave door won't open the button spring might be broken internally. The button spring can be replaced.
Button If the microwave door won't open the button might be broken internally. The button can be replaced.

Handle Actuator If the microwave door won't open the handle actuator might be broken. This is a plastic part which can become brittle over time. This part is connected between the door button and the door latch assembly.

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1 Answer

How to fix broken spring on liftmaster garage door


Replacing springs can be very dangerous. I suggest you call someone from a garage door company to do that for you.

Jun 08, 2012 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Installed two new springs on automatic doorman model 455 and it won't close or open. chain will not move door where are adjustment screws? I think that may be the problem


Does it make a noise? Did it run before you changed the springs? Did you replace springs on opener or on the door? What adjustment screws are you looking for? Do you think they went out of adjustment when you changed the springs?

Sep 04, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

''Overhead Door'' Garage Door Opener 1/2 HP Model 939 Base Unit Mod


YOU MAY HAVE A BROKEN SPRING.

CHECK FOR A GAP IN THE SPRING ABOVE THE DOOR.

IF YOU DO HAVE A BROKEN SPRING CALL IN A PRO.

THIS IS NOT A DIY PROJECT.

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1 Answer

Craftsman 1/2 HP garage opener opens only 6 inches


Remove the cover and check the drive gear. It is white nylon and is just in front of the motor. It may be stripped. Take a close look at those door springs. They can sometime appear to be okay when one is broken.

Oct 10, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage door won't open


You probably have a broken spring on your door

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

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