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

1 Answer

Door opens after closing

When the door reaches fully closed position it automatically begins to open again. The door won't stay closed. I've adjusted the limit sensor in both directions and it still doesn't stay closed.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    President:

    An expert whose answer got voted for 500 times.

  • Master
  • 3,197 Answers

If the main light flashes 10 times when the door reverses it is a door sensor problem but if the door is hitting the floor and reversing and the main light is not flashing then the door is closing too far and the safety thinks it has hit something. On the side of the motor unit you will find 2 controls. One of these is the 'down limit'. Turn this in the opposite direction of the arrow printed on the cover until the door closes but does not reverse.

Posted on Jul 17, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

The down adjustment broke off


Check the micro switch that will be activated when the door reaches the closed position. It might need to be readjusted as it is supposed to be activated just as the door reaches the fully closed position to stop the further movement of the door. If it does not get activated at that point the door will try to open further but sence an "obstruction" and start opening again as a buildt in safety measure for protection against possible injury or damage to property.

Jul 23, 2014 | Craftsman Garage Door Opener 1/2 HP Chain...

1 Answer

Garage opener try to close door when door at close position


There are upper and lower limit settings, it sounds like you have the lower limit set to low. Adjust it so it stops the door as it contacts the floor and see if this solves the problem. It is possible these limit controls are damaged and will not stay set. If that is the case it may be best to replace the opener if you cannot find a replacement.

Apr 06, 2014 | liftmaster Chamberlain Garage Door Opener...

1 Answer

Rear passenger door won't stay closed


Door latch on door itself is in closed position if it will not close at all. In this case, open door and pull outside handle hard to pop open door latch. If you have door opening at random, door latch needs replacing or door catch on body is loose.

Jul 29, 2012 | 2003 Chevrolet TrailBlazer

1 Answer

Oven door will not fully close allowing heat to escape and light stays on


Is the door locked? if it is it won't close all the way if it was in the locked position before it was closed. like if it was programmed for "self clean" without the door being closed, the lock would be engaged still.

Jun 09, 2012 | Electrolux EW30ES65GS 30" Slide-in...

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...

1 Answer

I have a 1/2hp master mechanic door opener. when I close the door it goes the full travel down and then opens back up. i checked the eyes and everything was lined up. do you have any suggestions?


Look at the setting for "fully closed". it sounds like yours is set for slightly than the actual opening....So, the door reaches that location, and it thinks it hit an obstruction, which causes the door to open....While you are there, reset the sensitivity settings.

What I would do is back off the closed position setting so that the door stops an inch or two off of the ground, then adjust until the door is in the correct closed position...

You are correct on the "eyes" (infrared sensors) being lined up, if they were not, the door would not close at all.

Mar 15, 2011 | Vacuums

1 Answer

2008 Dodge Grand Caravan side door does not automatically close.


sounds like the door sensor switch is malfunctioning and when almost closed it reacts like it is blocked (such and kid in way) and opens for safety. try flushing trach with hose and try again, if not u need a good repair manual such as chiltons($25 most parts stores ) or see mechanic

Jul 07, 2009 | 2008 Dodge Grand Caravan

1 Answer

The door reverses back to open position instead of closing


SOUNDS LIKE A SENSITIVITY ISSUE UNHOOK THE DOOR AND TRY IT MANUALLY TO BE SURE IT DOESN'T BIND OR IS TOO HARD TO OPEN OR CLOSE.

IF ALL IS WELL CHECK THE SENSITIVITY SETTINGS ON THE BACK OR SIDE OF THE OPENER.

YOU WANT THIS SET AS LOW AS POSSIBLE AND STILL OPERATE THE DOOR WITHOUT REVERSING.

NOTE: THE FULL RANGE OF ADJUSTMENT IS ONLY ABOUT 3/4 TURN SO MAKE A VERY SLIGHT ADJUSTMENT AND THEN TRY IT AGAIN.

HOPE THIS HELPS

Feb 20, 2009 | Sears Craftsman LiftMaster Chamberlain...

Not finding what you are looking for?
Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+ Logo

350 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Glenn Mayer
Glenn Mayer

Level 2 Expert

91 Answers

Mike

Level 3 Expert

4340 Answers

Cindy Wells

Level 3 Expert

5187 Answers

Are you a Sears Building Material Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...