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

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Garage door only goes up a foot but it goes down

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You probably have a broken spring on your door

Posted on Jan 18, 2009

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Garage door goes down a foot and goes back up. light by learn button flashes five times


That light is sending the code for RPM sensor or motor overload. Most likely it is the RPM sensor which is a small circuit board just in front of the motor. The part number is 41C4398A and is available at any good door opener service company.

Feb 06, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door goes up fine but when you press to come down it goes down one foot, seems like it hits something and returns.


There is a sensor which checks for obstructions, are you sure there is nothing impeding drive path?Inspect the drive path carefully. If it reaches a part of the drive path which causes it to slip or stick slightly this will tell it not to continue. Also but less likely have you checked that the optical sensor is clean and aligned. Make sure there is nothing blocking the optics.

Jan 17, 2011 | liftmaster Garage Door 1/2 Hp

1 Answer

Garage door goes up, but only travels about 12 inches and stops when it comes down


TRY HOLDING DOWN THE WALL BUTTON TO CLOSE THE DOOR.
IF IT WORKS THE PROBLEM IS IN THE SAFETY EYES.

IF THE DOOR TRUELY GOES A FOOT OR MORE AND THE ABOVE DOES NOT WORK - DISCONNECT THE DOOR FROM THE OPENER AND MAKE SURE IT WORKS SMOOTHLY - LUBE THE SPRING(S) ETC,
IF IT GOES UP AND DOWN WITHOUT TOO MUCH EFFORT ADJUST THE DOWN SENSITIVITY - NOTE: THIS IS A VERY SMALL ADJUSTMENT 1/8 TURN IS MORE THAN ENOUGH

IF YOU STILL HAVE PROBLEMS DOWNLOAD THE OWNERSMANUAL FROM LIFTMASTER.COM NAD READ THE TROUBLESHOOTING SECTION

HOPE THIS HELPS

Dec 20, 2009 | liftmaster Chamberlain Garage Door Opener...

2 Answers

Wanye dalton door opener modal 3018. goes up 1 foot and stops


Check your door springs. Usually just over the door and can be seen when the door is closed. A broken spring is the most common cause of this problem.

Aug 21, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Worked great the past 2 years. Now, garage door


Remove the cover and take a look at the drive gear. It is white nylon and is just in front of the motor. Most likely stripped.

Jul 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door goes up about a foot and stops


The sensors have nothing to do with your door opening. First thing to check are the door springs. One may be broken. Next remove the cover and check the drive gear. It is a white nylon gear just in front of the motor. It may be stripped.

Jun 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My garage door bucks like a bronco


You have a door problem. The reason the door is reversing to the open position is because when it bucks the safety senses something wrong. Release the door from the opener and operate it by hand. You should find something.

Jun 23, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Remote does not open or close garage door; inside button flashes


What has happened is that you electric eyes are blocked or have gone out. The eyes are at the garage door about a foot of the ground on both sides. There should be a red or green light on one of them. If not some thing is blocking the beam that goes across the door. It is a safety beam so kids can nt get hurt when the door is coming down. If the beam is broke the door will go back up.

Jan 24, 2009 | Chamberlain Powerdrive PD422D 1/2 HP...

1 Answer

Garage door only opens a foot from ground


Its due to the gear stucked problem! you should get it repaired by the mechanic! its not any other remote control problem.

Nov 29, 2007 | Computers & Internet

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