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

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Old nutone garage door opener

The door opens fully and light blinks 4 or 5 times.Then it will not close.If I try it again it just blinks again.

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Hello,

There should be 2 sensors on the bottom of your door on the inside, 1 on the right side and 1 on the left side.
These sensors serve 1 purpose to send a beam or reflection to each other.
If something is blocking this reflection or is in front of the sensor the door will always come back up.
It is a safety feature so nothing or no one gets hurt when the door is closing!

If any thing is blocking these sensors the door will not close! Make sure nothing is in the way not even a peice of paper.

Posted on Sep 23, 2008

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Posted on Jan 02, 2017

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The light on the Garage door 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).

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

Tip

2010 BMW 528XI Garage Door Opener Homelink Setup


**** >>> This setup I performed with my new 2010 BMW 528XI Garage Door Homelink and Chamberlain Garage Door Opener <<< ****

Chamberlain:
01. Power off or unplug the garage door opener motor power supply (which is mounted on ceiling of the garage) ;;;

02. keep the garage door opener transmitter in your hand (do not press any button at this time) ;;;

03. In your 2010 BMW 528XI Homelink button (which resides under rear view mirror) press the 1st and 3rd homelink button together for about 30-40 seconds (i.e., until the yellow light blinks fast) and when the yellow light next to the homelink button blinks fast release from pressing the (homelink) buttons ;;;

04. now hold the garage door opener transmitter closer (means within 2-4 inches) to the homelink button (either 1st or 2nd or 3rd) whichever you are planning to program to open the garage door ;;;

05. now press the garage door opener transmitter button and chosen homelink button (either 1st or 2nd or 3rd whatever you need) together ;;;

06. the yellow light (next to homelink button) initially may blink slowly but after few seconds (may be 10-20 seconds) will blink fast; once it started blinking fast release from pressing both garage door opener transmitter and homelink button ;;;

07. Now plug or power on the main garage door opener motor (which is mounted on garage ceiling) ;;;

08. On the main garage door opener motor (which is mounted on garage ceiling) press the "LEARN" button (once you press it may have yellow/orange color light; make sure the light is on) ; then within 30 seconds do the next steps #9, #10, #11 very carefully ;;;

09. go to your car and press the homelink button you programmed and hold it for 4 seconds and then release it --> 1st iteration ;;;

10. again hold the same homelink button you programmed and hold it for 4 seconds and then release it --> 2nd iteration ;;;

11. again hold the same homelink button you programmed and hold it for 4 seconds and then release it --> 3rd iteration ** important note; generally three iterations are not necessary; and steps #9, #10, #11 must be performed within 30 seconds ** ;;;

12. during one of the iteration you will hear "CLICK" sound one-time from Garage door motor (which is mounted on ceiling) and if you have light attached with it; it will blink once (** if you hear the CLICK sound and/or light blinks once**) then the particular homelink button is programmed ;;;

13. now press the programmed homelink button; the garage door will open or close (but always it will take 3 or 4 blinks in yellow light or 2-3 seconds before the garage door opens or closes and which is normal) ;;;

** Thats it, your 2010 BMW 528XI Garage Door Opener Homelink setup is complete ** ;;;

You can program rest of the homelink button the same way but following from the steps between #4 and #13 ;;;

Hope this steps will help you to program chamberlain Garage door opener in 2010 BMW 528XI Homelink. ;;;


** possibly the above same steps may work with other BMW 5-series cars homelink too (but I'm not sure) **

on May 29, 2010 | BMW 528 Cars & Trucks

1 Answer

After a brief power outage my Marantec 4700 garage door opener has problems opening/closing. When opening it stops at the fully open position and the lights blink, when closing it automatically reverses...


This is not a sensor issue, I have a similar problem, sensors work fine, garage door is still fully functional, all operations, including safety sensors work properly, just the overhead lights flash. I suspect there was damage to the power board due to a power surge, going to order a replacement to see if it works, will let you know how it goes.

May 14, 2011 | Vacuums

1 Answer

My mom & I each have a Craftsman garage door opener at our respective homes & live @ 15 minutes apart. Our openers are about 13 to 14 yrs old. The past two yrs. we've both had the same problem. ...


If the main light flashes 10 times when the door reverses to the open position it is a door sensor problem. Make sure both lights on the sensors stay on and don't flicker while the door is moving and the sensors are firmly attached so they don't move. Tweak them just a bit.

Nov 09, 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

Craftman garage opener


The blinking LED is sending the code for "RPM sensor or motor overload. It isn't the motor or it wouldn't run at all. The RPM sensor is a small printed circuit board near the front of the motor. It will be available at Sears or any good door opener service company.

Jun 22, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Won't open or close tries to run but stops


The fault code (4 blinks) is informing you of an issue with the infrared sensor that detects an obstruction in the path of the door.

It is ether misaligned or an issue with the wires leading to it or its faulty.

If the red beam is present at the sending unit (affixed to the doors frame), then it should be aimed at the receiving unit (affixed to the opposite frame) If the beam is received then there should be a green indicator light illuminated.

Good luck
Aduz

Mar 28, 2009 | liftmaster Chamberlain Garage Door Opener...

1 Answer

Universal remote for garage door opener


wow nutone is a dying bred but what you have is a outside radio meaning that its a sear set up to your opener you should be able to take your remote down to sears and they can match it up for you.

Feb 10, 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...

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