Question about liftmaster Garage Door 1/2 Hp

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Liftmaster Professional 1/2 horse model # 41A5483 installed in 02 Learn light flashes 4 times. When openers are hit in cars (2 Chrysler vans use built in Homelink Systems built into sun visors, one car uses Liftmaster remote) garage door will come down a bit, then stop and reat light blinks). If I hold down the button continuously, it may close all the way. There is nothing obstructing the two eyes on the bottom.

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Check the settings on the unit itself sometimes if you have it set up to come down too rapidly it will cause it stop and go back up because it thinks its hit something.

Posted on Apr 11, 2011

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1 Answer

HOW CAN YOU CROSS LIFTMASTER MODEL NUMBER AND HAVE BELT


Thayst a logic board #.. What model # is the operater.. 8165 8500 8550 etc??

Oct 02, 2016 | liftmaster Garage Door 1/2 Hp

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I have the Liftmaster Chamberlain Professional Formula I model 102.1499A and for some reason, the learn button will not sync with the homelink on two of my cars. Is there a way to reset the learn button? ...


Here is the information I have for homelink.

  1. Clear out anything previously programmed into the in-car system from the factory by holding down on the 2-outside buttons simultaneously, until the in-car LED starts flashing rapidly. This may take up to a minute (in most cases, the key should be on auxilary, and/or the car door must be shut).

  2. Decide which button you want to make to be your in-car garage door transmitter. Hold your transmitter up near the selected button, pressing both the garage door remote and the selected in-car transmitter button simultaneously. Hold down on the buttons until the in-car, LED light flashes rapidly. This sets the in-car remote transmitter to be your garage door openers make transmitter, but you are not done. You now need to make this in-car transmitter your personal transmitter.

3. Go to the Learn Button on your garage door opener. The button is usually next to the area where the floppy antenna is connected to the motor head. With Genie it is most often behind the light lens, and an indicator light flashes red when pressed. With Sears or Liftmaster (Chamberlain) it is near, or part of, the terminal screw board, and is a red, green or purple square button with a green, amber or purple indicator light. Press this learn button momentarily. The indicator light will turn on and blink if Genie or otherwise stay lit. For Genie systems, go back to the in-car transmitter button you programmed and press this button 3 or 4 times, or until the door starts moving. This should set your in-car transmitter to your garage door opener. For Liftmaster, Sears, or Linear Megacode press and hold the in-car button you programmed until the garage opener light flashes. Your in-car is now programmed to operate your door.



Jan 04, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Installing 41A5483-2b need wiring instructions


White wire with red trace to terminal #1. Three solid white wires to terminal #2 and two white wires with black trace to terminal #3.

Mar 27, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a quantum model 3212 serial #3000...fcc id #kj8intrmt...ok im trying to program my garage door to my truck..help please


1. In the vehicle press and hold the two outside buttons until the indicator light begins to flash (after 20 seconds). Release both buttons. Note: Some vehicles may require the ignition switch to be turned to the second (or "accessory") position during the programming process.

2. Hold the end of your handheld transmitter between 1 and 3 inches away from the Homelink surface (located on your visor or overhead console) keeping the indicator light in view.

3. Using both hands, simultaneously push the handheld transmitter button and the desired HomeLink button. DO NOT release the buttons until step 4 has been completed.

4. Hold down both buttons until the indicator light on the HomeLink Wireless Control System flashes, first slowly then rapidly. When the indicator light flashes rapidly, both buttons may be released. (The rapidly flashing light indicates successful programming of the new frequency signal.)

To train your garage door opener.

1. Locate the smart/learn button on the garage door opener motor head unit.

2. Press and immediately release the smart/learn button.

Firmly press and release the programmed HomeLink button. Press and release the HomeLink button a second time to complete the training process. (Some garage door openers may require you to do this procedure a third time to complete the training.)


Feb 23, 2010 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Programming remote, unit will not flash.


The easiest way to program is to hold the button on the remote while you press and immediately release the smart/learn button. If it worked before there is no reason for it not to work now unless it totally failed.

Oct 05, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Reprogram keypad with new code


Here is a link that will give you the programming instructions for your model.
Use the model number from the motor unit, not the remote. I believe that Craftsman now goes under the Liftmaster name.
http://www.garagedooropeners.us/helpgifs/maincode.html
Mike

Apr 06, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Door opens about 18" and stops


Check the drive belt for tightness. Check for a bent or obstructed track. Overhead door openers have a safety clutch built in in case something or someone gets into the path.

Jan 31, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Wireless Keypad wont allow use of other door openers


hit learn button for 10 seconds. now nothing will work except wired buttons. Hit learn for 1 second and put in yur 4 digit keypad code and hit enter, light on motor will blink twice. hit learn again for 1 second and push button on remote. again bulb will blink. continue pushing learn for 1 second and adding another remote.

Dec 26, 2008 | Sears Craftsman LiftMaster Chamberlain...

9 Answers

Trouble changing passwordon model 940CB wireless keyless entry


easyer then that , you die! Open your garage door, take out the step ladder, a chair or get up on *********** in law's back, (here's your chance to be on her back for a change) press the read button of your unit (motor) a led should light up and on the key pad, key in the new 4 digits code and press enter, the light of the unit should blink javascript:; Post Solution

May 19, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

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.

May 10, 2008 | Sears Craftsman LiftMaster Chamberlain...

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