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

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Door only opens about 3 inches

When we use the remotes or wall opener the gargare door only opens about 3 inches & then stops. It closes with no problem.

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You have a broken spring on the door. Stop tyring to open door with opener immediately or you will have a broken opener and a broken spring

Posted on Jun 16, 2010

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My liftmaster formula1 opens everytime but only the wall button will close it. Once in a while a remote will work but rarely. I have one remote, one vehicle oem remote and a wall mounted remote outsid


does it attempt to close. stop go back up and the lights flash....if so check the safety eyes, check for boken spring/ springs using the wall mount button circumvents the safety system. check the down pressure setting.

Nov 15, 2014 | Garage Doors

1 Answer

I have two craftsman door openers. They work great with pushbutton on wall, open and close ok. The door opens fine with remotes ( one handheld other homelink in car ) but will not close with remote. It...


If the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. Make sure the lights on the sensors are both on and not flickering. Tweak them if necessary. If you cannot get both lights to come on you have bad sensors or the wiring to them.

Dec 27, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Hello we have a Chamberlin 2265R 1/2 HP gargare door opener. There are two issues. 1) recently when we press the remote to open the garage door the door will travel a short distance then stop press it...


I have recently had the same problem. I found one of the brackets on the garage door was broken. The broken piece which was hanging may have been interfeering with the traveling of the door. It was a diamond shapped bracket labeled N1. the door opens and closes, plus putting stress on the dootr. works fine now, i am in the process as we speak to find a replacement bracket. It was driving me crazy. The door would open fine, but when closing it would stop then go back up, the light would flash. Check all yhe brackets on the garage door itself.

Nov 27, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Problem with Sears Garage Door Opener


The motors is cought on something check the motor if it moves inches it will move a yard the question is the motor is it getting power? if so is it stuck on its own drive chain? Check these things you be glad you did.

May 25, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opening by itself


Anytime a door opens and/or closes by itself I look for a smashed wire between the motor unit and the wall button.

If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door.

Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.

The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.

The test is to disconnect the push button wires at the power unit. If the self operation stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.

Mar 17, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opening/closing problem


Could be a bad wall button or a smashed wire.
Anytime a door opens and/or closes by itself, or remotes work intermitantly I look for a smashed wire between the motor unit and the wall button or a bad wall button.

If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door or interfere with the remote.

Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.

The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.

The test is to disconnect the push button wires at the power unit. If the self operation / interference stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.

HOPE THIS HELPS

Jan 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Pressing remotes the door won't go u[


It sounds like you have the lock enguaged. When it is flashing it locks out all remote access. Hold the lock button for 3 seconds. The green light should go solid. On the issue of closing, it is most likely a safety eye issue. Hold down the wall button. If it closes it is the safety eyes. Holding the button overrides the safety eyes. Make sure that thelight on both eyes are both lit.

Jan 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Remote only closes the garage door, will not open it


Anytime a door opens and/or closes randomly or doesn’t work consistently I look for a smashed wire between the motor unit and the wall button.

If the wire is smashed the insulation becomes so thin that power will leak thru the insulation and activate the door or interfere with the remote signal.

Loosen the staples with a small screwdriver and slide the wire about ½ inch to move any areas of thin insulation away from the staples.

The second thing would be a bad wall button or a remote with a sticking button.
Or a remote in someone’s purse that gets the button pushed by other stuff in the purse.

The test is to disconnect the push button wires at the power unit. If the self operation / interference stops you have located the problem. If you reconnect the wires and disconnect the wire at the wall button this will tell you if the problem is the wire or the button.

In your case the expansion of the wall in the afternoon may be enough to cause pressure on the wire to increase the problem – works in the morning but not the afternoon.

Also after you change the batteries you need to reprogram the remotes.

HOPE THIS HELPS

Aug 08, 2008 | Sears Craftsman LiftMaster Chamberlain...

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