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I have a sears garage opener which does not have the safety sensors. The model number is 41A3189 and I am curious as to whether I can install safety sensors on this unit.

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  • Ernie Hiebert
    Ernie Hiebert Jan 04, 2014

    This opener has five low voltage terminals---two of which are used for the manual opening of the door. The unused terminals are marked

  • Ernie Hiebert
    Ernie Hiebert Jan 04, 2014

    The unused terminals are marked blk, orn, yel. I am wondering if the sensors can be connected to one or more of these low voltage terminals?

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6 Suggested Answers

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Posted on Jan 02, 2017

  • 11 Answers

SOURCE: Sears Craftsman Garage Door Opener Wireless Keypad Model and a LiftMaster Chamberlain Professional Garage Door

Hello,

I had the same frustrating dilemma with my Craftsman LiftMaster garage door and Keypad, Model 139.53754-01 (dated 10/06; and has the # 315 MHz).

To resolve “the dilemma”, grab your keypad, climb up on a ladder to access the garage door opener’s motor unit. On the right side of the motor unit, remove the white plastic casing by pressing buttons on each side and pulling down. This will expose the programming area, and for our purposes, the “Learn” button.

1. On the motor unit, press and release the “Learn” button. The Learn indicator light will glow steadily for 30 seconds.

2. Within 30 seconds, enter a four digit personal identification number (PIN) of your choice on the keypad. Then press and hold the ENTER button.

3. Release the ENTER button when the motor unit lights blink. The code has been “learned”/stored/activated.

Good Luck, and I Hope this Helps!
Gail
For possible future reference:

How to change an existing, known PIN
(Changing an existing PIN can be done with the wireless remote keypad, and does not require access of the motor unit.)

From the keypad:

1. Enter the four digits of the present PIN, then press and hold the # button. The opener light will blink twice. Release the # button.

2. Enter your new 4-digit PIN and press Enter. The motor unit lights will blink once when the PIN has been “learned”/stored/activated. Test by entering the new PIN, and pressing Enter.

Posted on Jun 24, 2008

  • 1 Answer

SOURCE: Garage Door Remote Not Working Consistently

Lift Master Security Plus remote works only intermitenly, It seems to lock after a few tries, Works from inside garage, Seems to lock up after few tries, Wall opener fine. Changed batteries several times. Can't understand why it works and then doesn't. Tried cleaning sensors and wires,

Posted on Oct 29, 2008

  • 899 Answers

SOURCE: Garage door only opens with wall unit

a component in the wall unit is failing , that makes the conection happen when the remote signal is recieved , ( it is recieving the remote signal but not sending it out to the control circuit for the motor )

Posted on Dec 29, 2008

  • 1 Answer

SOURCE: How to reprogram Sears Mult-Function Keyless Entry garage opener

On the garage opener that actually opens the door the one on the ceilling has a green or orange button that is called the learn button just press and release it you have 30 seconds to punch in a 4 digit code and when your done press and hold the enter button until the lights on the garage open blink once or twice then just press the code again and it will open the door press enter once to reverse the effect and and twice to stop the door completely.


Hope that helps

Posted on Mar 17, 2009

  • 3197 Answers

SOURCE: Access Master Garage Door Opener opens by itself

The most common cause of this is a bad wall control or the wiring going to it. The wall control goes bad from use and the wiring sometimes has intermittent short caused by the staples the installer used.

Posted on Jul 31, 2009

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1 Answer

Installed new opener and everything worked properly. 2days later the safety sensor doesn't work. The amber and green lights are not lit and the door won't go down. This is a Chamberiain 1/2 hp chain drive....


If you haven't yet, double check the wiring on the back of the motor unit. A wire could have broken or just come loose. If your opener is new it will be in warranty.

Sep 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

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Need a manual for sears model 139.18856, 1/2


According to Sears your model number is bad. Double check the number and they will have the owners manual with complete installation instructions.

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The safety eyes are either installed wrong, or you have the wrong type. Craftsman (liftmaster) has what they they call old style and new style safety eyes. You can not interchange the types.

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

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

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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 sensors


#2 and 3 on my opener. #1 and 2 are atteched to the wall button. So # 2 has both attached. Hope that helps.

Aug 20, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Wiring the opener and sensors


The wall button gets the red and white wire. The safety eyes use the black and white wires. There are two types of attachments on the back of the openers. One has three screws. On this type the 1 is for the red wire, the 2 is for all white wires, and the 3 is for all black wires. The other type has four blocks and you just match the color to the wire color.

Jan 29, 2008 | Sears Craftsman LiftMaster Chamberlain...

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