Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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MY GARAGE WILL NOT COME UP WITH REMOTE,BUT SIGNAL IS THERE LIGHT BLINKS WHEN I PRESS BUTTON

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Try to give as much information as possible. Does the garage door open when you press the button on the wall?
Do you have power at the plug? Do you hear the motor running, could be a broken belt? Try to search a little deeper then let me know. I'll try to help the best I can.

Posted on Apr 25, 2010

  • kevinryan352 Sep 16, 2010

    I have the same problem, main lights blink when I use the remote, but the main wall buttom works (and continuously blinks) and the keypad outside works. The safety sensors appear to be alright as well. Any ideas?
    kevin.ryan@amgeneral.com

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Posted on Jan 02, 2017

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GT3-R -can


This is a dual frequency transmitter. (315/390) You need to select one button to program the TYPE 1 frequency of 390 MHz. Here's how:

Backwards compatable programming instructions for GT3-R dual-band remote: This is a 3 button remote, which can be used to operate up to 3 garage doors using IntelliCode radio controls. This remote is defaulted to operate the new IntelliCode 2 Genie garage door openers, but you can also program individual buttons to operate other IntelliCode 1 (pre 2011) models of Genie garage door openers made from 1998 to present. To change a button to operate a pre 2011 IntelliCode opener, the default IntelliCode 2 setting must be changed to IntelliCode 1. An LED light on the remote displays which mode the remote button is in: Red = IntelliCode 1 / Green = IntelliCode 2 To set one of the 3 buttons to be IntelliCode 1 (red), follow the instructions below:
  1. Select a button on the remote that has not been programmed.
  2. Press and hold that button for 10 seconds. Both Red and Green LEDs come on and stay on.
  3. Press the same button twice to toggle IntelliCode selection from IntelliCode 2 to IntelliCode 1.
  4. Press the same button again to confirm toggle. the LED should be Red. The IntelliCode selection for this button is set to IntelliCode 1.
You are now ready to program the remote to your garage door. Follow accompanying instructions for "Programming to IntelliCode 1 Genie garage door opener," or see below instructions: Programming Instructions: Gently press the Receiver Learn Code button on the power head receiver of your Genie garage door opener (motor head on ceiling in garage). This small, black, unmarked button is located behind the light lens at the motor head and is nearest the floppy 6 inch antenna wire that protrudes from the motor head. When pressed, a radio signal indicator light will start blinking red for 30 seconds. After pressing the Learn Code Button, press your transmitter button twice for your system to grab the frequency and code it in. (Keep the transmitter you're tuning at least 2 feet away from the power head while tuning.) Press the transmitter button once more to test the system and start your door moving.

Jan 06, 2012 | Video Game Consoles & Games

1 Answer

I have lost manufacturers manual on my BMW 325ci 2001 model. i only require pages relating to the programing of automatic garage door thank you


NOTE: Some vehicles may require the ignition to be turned on or to the second (or"accessory") position for programming and/or operation of HomeLink. It is also recommended that a new battery be replaced in the hand held transmitter of the device being programmed to HomeLink for quicker training and accurate transmission of the radio frequency. Please use a ladder and do not stand on your vehicle during the programming steps for a rolling code opener.

Rolling Code Programming:
1. Press and hold the two outer HomeLink buttons until the indicator light begins to flash (after 20 seconds). Do not hold for longer than 30 seconds. Do not repeat this step to program additional HomeLink buttons.

2. Place the hand-held remote 1-3 inches from the HomeLink button you want to program.

3. Simultaneously, press and hold both the HomeLink and hand-held remote buttons. Do not release either button until step 4 has been completed. (If you reside in Canada, refer to the "NOTE" below.)

4. When the indicator light changes from a slow blink to a rapid flash, release both buttons.

5. At the garage door opener receiver (motorhead unit) in the garage, locate the"learn" or "smart" button (usually near where the hanging antenna wire is attached).

6. Press and release this "learn" or "smart" button. (The name of these buttons vary by manufacturer.) There are 30 seconds in which to initiate step 7.

7. Firmly press, hold for two seconds, and release the programmed HomeLink button. Do this procedure again and, depending on the make of your garage door opener, do this procedure a third time to complete the procedure.

The garage should now activate when the programmed HomeLink button is firmly pressed and released. If not, give us a call or refer to the "Troubleshooting Tips" noted below. NOTE: If you reside in Canada, replace step three with the following: Press and hold the desired HomeLink button and "cycle" the hand-held remote. To cycle: Press and release the hand-held remote button every two seconds until the indicator light changes from a slow blink to a rapid flash(step four).

Troubleshooting Tips:

** Check the frequency of the garage door opener's hand-held remote (usually found on the back). HomeLink is compatible with radio-frequency devices operating between 288-399 Mhz.

** Put a brand new, store bought battery in the hand held remote. During the programming process (step three above) the battery's energy tends to drain (more so with an older battery). A new battery will increase the speed and accuracy in which the hand-held remote sends its signal to HomeLink.

** Retrain HomeLink holding the hand-held remote at different lengths and angles from the HomeLink button you are trying to program (during programming step three). Try 4-6 inches away at a different angle.

** Confirm that the HomeLink button you are trying to program is in the "programming mode". Press and hold the desired button. The indicator light will be a slow blink when HomeLink is in the "programming" mode and can be programmed at any time.

Verifying HomeLink has picked up a rolling code signal:

** Press and hold the programmed HomeLink button. If the indicator light blinks rapidly for two seconds and turns solid, HomeLink has successfully picked up the rolling code signal. If necessary, proceed with steps 5-7 noted above to complete the rolling code programming.

Sep 09, 2009 | 2001 BMW 325

1 Answer

Garage door wont work with remote


If the small light in your wall control is blinking it is in the lock mode. Press and hold for 3 seconds the button with the icon of a lock. This will toggle the lock function off.

Aug 04, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

How to program the suv morano garage opener


1. Press and hold the two outside garage opener buttons located on rear view mirror until the red LED light blinks (could be 20 sec.)
2. Press and hold the middle button on the rear view mirror while holding a garage door remote 1-3 inches away from the mirror and pressing the remote button. Do this until the blinking LED gets noticeably faster.
3. Once programmed - use the garage door opener on the mirror thru 3 cycles or more to verify.

Jun 26, 2009 | 2005 Nissan Murano

1 Answer

Remote doesn't work, after changing the battery


Reprogram the remote. Press the learn button on the back of the opener and then press the remote button until the light on the opener blinks once.

Feb 23, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftman garge door opener changing code on key pad


having all the remotes you want programed with you, find learn button on back of opener. hold button until little light goes out- no remote will work now, with each remote Press learn button once,Press big button on remote-light bulb on opener will blink on/off if bulb is working-do this each hand held-keyless is same way, put you 4 #'s in HOLD enter button-light bulb blinks on/off you have 15 sec. for each time you hit the learn button. also best to start off with new 9 volt battery before you start programing

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

1 Answer

Garage door keypad & remote


You need to sync both. I have a LiftMaster. If you want to change the code on your keypad you need to open up the garage door motor compartment where the light is (mine is in the back). Press the learn button, within 30 seconds enter the new code on your keypad and hold down the enter button for several seconds until the light on the opener blinks to tell you it has learned the code. Test the new code to see if it works. If the new keypad code works, then try the remote. My remote will not work after I reprogram the keypad. If the remote does not work (check battery) then climb back up the ladder and press the learn button on the garage door motor again, press the remote button and hold down until the light blinks again and the opener has learned the new code. This process works when I need to sync my remote and keypad. Good luck, I hope this helps.

Jul 21, 2008 | Sears Craftsman LiftMaster Chamberlain...

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