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

1 Answer

My craftsman 3/4 hp garage door closer will not work. When I pressed the button the lights blinked on and off, so I checked and changed the sensor. Still NG. There is power to the unit, as the light can be turned on and off; sensors lit and steady. What can I check next? Thanks

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 when the door starts down the main lights flash 10 times and the door reverses to the open position it is a door sensor problem. If this is not the case you can try increasing the 'down force' just a bit. This control is on the rear of the motor unit near where all those white wires go. If this doesn't do it you may have a bad RPM sensor. This is a small printed circuit board just in front of the motor.

Posted on Dec 30, 2010

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

I have a 1/2 hp craftsman opener. Remotes work fine. Wired wall unit has a blinking light on the open button and will not work Lock pad and light pad work but not the operate pad.????


Try pressing and holding the lock button for 3 seconds to stop the light from blinking. Your wall control may be bad. Usually when that light is blinking it is the remotes that will not work.

Jul 02, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

For 1/2 HP belt drive opener: With the belt off, the motor sprocket only turns 1/8 - 1/4 turn each time the door opener button is pressed. Although nothing is obstructing the door or the sensors, the...


If the main light blinks 10 times when you try to close the door it is a door sensor problem. Make sure the small light on each sensor is lit and not blinking. Tweak them a bit if necessary.

Oct 13, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

We have a 3/4 hp Craftsman garage door opener that has stopped working. It opened fine, but will not close. The lights on the unit work but the Training Light is blinking.


If by training light you mean the LED next to the smart/learn button then this is normal if it is random blinking. Make sure your door sensors are properly aligned and pointing at one another. Each of them has a small light that should be lit and not blinking when they are aligned.

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

2 Answers

Hi I have 1/3 hp liftmaster garage door opener that will not open from the remotes but will open with button on wall. I think it is a reciever problem?? any suggestions?/


reset your remotes and your main transmitter after removing and replacing the remote batteries (these use rolling codes that change each time you operate the door) the procedure for doing this is listed on the liftmaster website

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

14 Answers

Sears craftsman 1/2 hp garage door troubleshooting


My garage door opener will start to close then stop and go back to the open position. If I put pressure on the door as it is closing sometimes it will close all the way and sometimes it will return to the open position. Can you help me. Thanks pbstation771@verizon.net

Aug 18, 2008 | Sears Craftsman LiftMaster Chamberlain...

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

74 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...