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

1 Answer

On my garage, one sensor green light is on other sensor is blink

One of my sensor light blinking and garage door does not open or close

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 112 Answers

Your safety eyes are not pointing at each other. Aligning them should fix your problem

Posted on Jan 18, 2009

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

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

The unit is displaying a sequence of 5 flashes with the amber light. When I try to open the door, it will only go forward and backward aprrox. 1 ft. Any suggestions on what I should do?


Craftsmsman 1/2 HP opener indicator light blinks five times ...

? 0:29
https://www.youtube.com/watch?v=AvXJd-tYCJ0
Apr 28, 2012 - Uploaded by bship452
Then showing the amber indicator light blinking 5 five times, stops ... push remote to operate opener, you hear a clicking sound from the unit. ... Show more .... blink 5 times (looks almost alike) If I forced the garage door closed, ...Missing: sequence

Sears Garage door opener problem - Home Forums

ths.gardenweb.com > Home Forums > Garages/Workshops
Jun 27, 2006 - Now, I cannot get the light in the sensor at the door to come on. ... the green LED went OUT about 1/2 way up the door opening sequence. .... other is working (I don't recall if it's green or amber, but know that it is lit.) ... Their is also a green LEDflashing 2 times every 5 seconds or so at control center of unit.

Craftsman Garage Door Opener Problem - Home Forums



Jan 05, 2016 | Building Materials

3 Answers

Garage door light blinks but doesn't stay on


Three blinking lights & door won't close by Candi
(Winston-Salem, NC)
Garage door will not open and close with remotes. Three blinking lights occur when we try to close door. What does this mean? It is a Linear unit.

I will assume you mean that your garage door will open with your remote but will not close. It should close if you press and hold the wall control button until the door is fully closed.

If that is the case, the 3 blinking lights indicate that your garage door's infrared safety beams are not properly aligned.

1) Check that the operator has power. The green lights on the sender and receiver should be lit.

2) If the receiver's green light is on, but the red light is off, the receiver has power but is not detecting the infrared beam from the sender. The red light might flash when the beam is partially detected. This can be caused by
mis-alignment or something blocking the beam.

Adjust the safety beam sender and receiver while watching the receiver's red light (stay out of the beam while aligning it). When the red light stays on, the beam is aligned and your garage door should operate normally.

http://www.linearcorp.com/pdf/manuals/LCO75.pdf

NOTE: If the receiver's red light remains off, check for:

1) Dirt on the receiver's lens,

2) Sunlight shining into the receiver's lens,

3) A short in the safety beam wiring (from staples or at the operator terminals).
http://www.linearcorp.com/pdf/manuals/LCO75.pdf

Dec 02, 2013 | liftmaster Garage Door 1/2 Hp

1 Answer

Have a Craftsman 1/2hp garage door opener (HBW0777 year 1994). It won't close and goes back while blinking 8 or 9 times. Transmitting sensor (red light) is blinking 3 times (even i hold the two sensor...


Anytime the main light flashes 10 times and the door reverses to the open position it is a door sensor problem. If the transmitting sensor light is blinking it is bad.

Nov 20, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

My red light sensor is blinking constantly and the green light sensor is steady. I grab hold of the red light sensor and squeeze and the light goes solid and I am able to close the garage door. when i let...


It sounds like there might be a loose wire connection on the inside of the sensor. You could also be moving the position of the sensor slightly into alignment when you squeeze the sensor. You will need to disconnect the wires for the sensor on the garage door opener or disconnect the power. Then use a flatblade screw driver and carefully seperate the sensor case. Check for any loose connections on the wiring(you might need to re-solder the wire to the sensor eye). It sounds like a loose wire connection to me.

Jan 09, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opener won't close. travels 6-8 in.,


If you cannot get the light on the sensor to come on by tweaking it,making sure it is pointed at the other sensor and your wiring is not broken or shorted then your sensors need to be replaced.

Jan 08, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door will not close with remote.


The code you are seeing with 5 blinks is "RPM sensor or motor overload." We can eliminate the motor overload because the door is trying to close. The RPM sensor is a small printed circuit board just in front of the motor. It's a snap to replace and is available at any good door opener company. They will know exactly what you are talking about if you ask for an RPM sensor board.

Aug 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door won't shut, light blinks 10 times.


If the light blinks 10 times it is a sensor problem. Nothing else will cause this. Tweak the sensor a bit and check it out.

Jun 28, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman GDO reverses itself when the door reaches the eyes


The only thing that will cause the main light to blink 10 times is a sensor problem. Sometimes the sensors will be misaligned just enough to turn the light on but will not work properly. If you look really close (on your knees) you can see the receiving sensor blinking ever so slightly. Tweak the sensors until the light glows constant.

Jun 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Chamberplain Garage Door Opener problem


IF U HAVE TWO EYE,SENSORS ON EACH SIDE OF THE DOOR SEE IF SOMETHING IS BLOCKING THE EYES OR SOETHING IS COVERING THEM, OR THEY ARE OUT OF ALIGNMENT, ONE SHOULD SHOW GREEN, AND ONE RED EYE, GOOD LOCK

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

2 Answers

One sensor light is blinking green, the other sensor light is bli


the safety eyes are wired wrong on the back of the opener. Check the wire locations.

Nov 24, 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

254 people viewed this question

Ask a Question

Usually answered in minutes!

Top Sears Building Materials Experts

Mike

Level 3 Expert

4332 Answers

Cindy Wells

Level 3 Expert

4802 Answers

Brad Brown

Level 3 Expert

13732 Answers

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

Answer questions

Manuals & User Guides

Loading...