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HOW DO I ADJUST THE DOOR SO IT GOES DOWN SLOWLY WHEN I OPEN IT

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  • Josh Stephenson
    Josh Stephenson Apr 08, 2015

    Hi Herbert Anderson, I want to help you with your question, but I need more information from you. Are you trying to make the door close/open more slowly than it is now? Do you know the maker of your garage door opener?

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  • Master
  • 2,184 Answers

Increase tension on spring(s) if you know how.

Posted on Apr 08, 2015

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1 Answer

Liftmaster Professional Formula I, will not close.. Goes down and hits floor and open up again. Thank you


On the operator is a screw adjuster for how far down the door goes. Find this adjustment and rotate it in the direction of less travel. Then you may have to spend a few minutes setting it so the door closes snugly.

Gary

Aug 31, 2011 | liftmaster Chamberlain Garage Door Opener...

1 Answer

Door goes down and when it stops at botton, it turns and goes back up ??? Need adjusting ..How can I adjust???


Adjust the position of the door by using the black and purple buttons. Black moves the door UP (open) and purple moves the door DOWN (close)
Setting the up position: 1. Press and hold the black button until the LED starts flashing slowly, then release. 2. Push and hold the black button until the door reaches the desired UP (open) position 3. Push the door control or programmed remote control. This sets the Up (open) position and begins closing the door. 4. Immediately when the door begins to close press and release the black or purple button. This will stop the door Setting the Down position: 5. Push and hold the purple button until the door reaches the desired DOWN (Closed) position. 6. Once the door is closed, If there appears to be too much pressure on the door, you may toggle the door back and forth using the black and purple buttons to reach the desired closed position. 7. Push the door control or programmed remote control. This sets the Down (closed) limit and the door should open.

Aug 11, 2011 | Chamberlain 3/4-HP Whisper Drive Plus...

2 Answers

DOOR CLOSES MOST OF THE WAY AND THEN OPENS. LIGHT THEN BLINKS TEN TIMES. I NOTICED THAT ONE SAFETY SENSOR IS GREEN AND ONE IS YELLOW. PLEASE ADVISE.


Hi. The sensor with the yellow light is telling you that it is miss-aligned, Usually it only takes getting bumped to knock them out of alignment.
I would slowly turn or adjust the positioning of the sensor.
The one with the yellow light should turn green when it is all the way in line so that the beam is completing it's path.

It's out of adjustment, so the sensor is looking at it like there is an object blocking the door from closing.
It's called the obstruction sensor.
It's there as a safety feature, so that the door doesn't come down and smash anything in the opening.

I hope this helps you out.

Feb 04, 2011 | liftmaster Garage Door 1/2 Hp

1 Answer

The motor runs but it only opens a few inches and slowly goes back down its a chamberlain whisper drive model HD900D


Hi. I have seen this before, although usually not from chamberlain garage door openers.

Pull the release cord that unlocks the door from the opener, and manually open the door ALL the way open.

Then lock back in place in the open position.

Then use automatic opener to shut door.

It will close very slowly, but should close all the way.

Then, open the door again using the remote, and the door will once again open slowly, this time it should open all the way.

Then close door with remote, and door should now close as it is supposed, with the proper speed.

The slow opening and shutting is the system position sensor resetting itself.

This is why your door is acting up.

I would also look up by the belt drive connects to the front of the garage door opening, to make sure there isn't any dirt, cobwebs, or other obstructions on the sensor that may cause it to re-close the way it does.

Jan 24, 2011 | Chamberlain 1/2-HP Whisper Drive Belt...

1 Answer

We just replaced a broken spring (re[laced both sides) on craftsman garage door opener and now the door won't shut all the way. It goes down to about 12" from closing and then goes back up.


YOU COULD HAVE THE WRONG SPRING OR NOT ADJUSTED PROPERLY. YOU COULD HAVE AN OPERATOR ADJUSTMENT PROBLEM.

HOW DOES THE DOOR WORK MANUALLY??

IF IT IS HARD TO PUSH DOWN AT THE BOTTOM - SPRING PROBLEM - IF IT WORKS AND CLOSES VERY SMOOTHLU AND EASILY THEN YOU COULD ADJUST THE DOWN SENSITIVITY - JUST A LITTLE.

Jun 19, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+: Door goes down and when it reaches the bottom, it ...


If the door hits the garage floor and then reverses to the open position you need to adjust the 'down limit' which is on the side of the motor unit. Turn this control in the opposite direction of the arrow printed on the cover. Some tweaking will probably be necessary.

May 16, 2010 | Sears Craftsman LiftMaster Chamberlain...

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...

1 Answer

Belt drive track arm bows up


YOU MAY NEED TO GET THE SPRING ON THE DOOR ADJUSTED.

WHEN AN OPENER IS INSTALLED THE SPRING SHOULD BE SET A LITTLE HEAVY. YOU WANT THE DOOR TO SLOWLY DRIFT CLOSED IF LEFT HALFWAY UP.

IT SOUNDS LIKE EITHER YOUR SPRING NEEDS ADJUSTMENT OR THE DOOR BINDS AT THE BOTTOM - HOW DOES IT WORK MANUALLY??

IF YOU CAN'T CLOSE IT WITH 3 FINGERS THE OPENER WILL HAVE TROUBLE.

YES THE CRAFTSMAN RAIL IS WEAK MAKING IT THAT MUCH MORE CRITICAL TO SET THE HEIGHT PER INSTRUCTIONS AND MAKE SURE THE DOOR WORKS EASILY,

HOPE THIS HELPS

Apr 05, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Opening theGarage door manually


two problems. why aren't inner and outter trolley connecting. did you leave rope is disconnect position. Second problem is door springs do not seem balanced. you should be able to lift door halve way up and let go. it should pretty much stay there; go up or down slowly ok. fly up or crash down; need to adjust springs/cables or maybe wrong springs.

Jan 06, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman garage door opener


IF IT HITS THE FLOOR AND GOES BACK UP. YOU NEED TO ADJUST THE DOWN LIMIT.

IF IT GOES BACK UP BEFORE HITTING THE FLOOR YOU NEED TO ADJUST THE SENSITIVITY OR THE SAFETY EYES.

TRY THE DOOR MANUALLY AND MAKE SURE IT WORKS SMOOTHLY.

Sep 30, 2008 | Sears Craftsman LiftMaster Chamberlain...

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