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

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Need to add obstruction sensors to an older Craftsman Garage door opener that never cam e with them. Is this possible?

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Generally not. To get the sensors alone would cost very near the price of a new unit equipped with video sensors. You could verify this with Sears.
tom

Posted on Sep 02, 2010

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Craftsman 1/2hp garage door opener works fine to open door but to close I have to hold button down. If not, door won't move and lights flash 10 times.


10 flashes mean sensors are obstructed... something is in the way of the door or they are not facing each other. Clear the obstruction or realign the door and it will work.

Aug 27, 2014 | Craftsman Garage Door Opener 1/2 HP Chain...

1 Answer

Craftsman 1/2 hp garage door opener will start to close and after 2-3 seconds it goes back up and there is no obstruction blocking sensors


you may need to adjust limit switches in back of operator.Most of the time with this problem one of the gears inside the operator has stripped out.

Jan 26, 2013 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a Craftsman garage door opener Model #139.53664SRT that has worked great until recently. When I leave my garage & try to use the keypad or remote after opening the garage door from the inside of...


From the description about the lights which does have a slight affect on their sensitivity suggests the sensor adjustment. The sensors that detects obstructions appear to be out of adjustment.

Check the alignment for proper operation. It may be dust that is obstruction the sensor.


garage door safety-dmbde0w01a5yu2mfdv43xlfn-4-0.jpg

1466178634909-dmbde0w01a5yu2mfdv43xlfn-4-2.jpg hope this helps http://www.searspartsdirect.com/partsdirect/user-manuals/13953975srt1-craftsman-parts-manual

Jun 23, 2017 | Kitchen Ranges

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We have a older craftsman door opener and we now need to hold the button to close the door and the car remote dose not work.


Clear any obstruction from between the safety sensors. Loose leaves, trash, and dirt on the lens of the sensor itself are all examples of things that can obstruct the sensor's signal.

  1. Check each sensor for a steady glowing indicator light. If both indicator lights are on, or if one indicator light is flickering, the sensors may be slightly misaligned. To check for misalignment; obstruct the beam of the sensors so that they cannot see each other. When the beam is blocked, the indicator light on one of the two sensors will temporarily go out. This is the receiving sensor. Remove the obstruction and loosen the wing nut on the back of the receiving sensor. Adjust the receiving sensor until the green indicator light goes out, if not already out, then realign until the green light is bright and steady, then retighten the wing nut. This usually takes a couple of attempts before it is back in alignment.

  2. If an indicator light is out on one or both sensors, check for a possible loose or shorted wire. Sensor wires are attached to the white and black terminals on the back or side panel of the overhead motor unit. Check that they are securely connected to each terminal. Also check the wires for any breaks, especially anywhere they are spliced together.


Jan 08, 2011 | 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

Garage door won't close with remotes


Yeh, read manual. Do both sensors have led lit. try aligning. you have safety beam problem,

Jan 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Chamberlain Liftmaster Pro. Garage door Problems closing


The sensor eye - or more likely, the other end, the sensor light - probably got knocked out of alignment. The eye should have an LED on it - possibly one that glows green when it's ready to close or red when it's obstructed or out of alignment. Try adjusting the light until the LED on the receiver glows green.

Dec 07, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door opens only 6 inches and stuck


I would try jumping a wire across the white & red terminal to see if your safety sensors are working Properly! If your door opens you have a loose connection or faulty sensors.

Oct 22, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door Opener Intermittingly Reversing


try adjusted the sensor controls on the sode of the unit other wise replace the logic board
http://www.chamberlain-garage-door-openers.com/circuitboardcompatibilitychart.htm

Dec 24, 2007 | Sears Craftsman LiftMaster Chamberlain...

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