Question about Chamberlain 12HP Power Drive Chain Drive Garage Access System

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When i used my remote to close the garage it will start and stop and the light just continue to blink. the only way i can get it to close is to continue to hold the button down on the wall.

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If the door can be pulled up and down manually, and seems smooth and free of restrictions, and doesn't close jerkily.... then there is a fair chance it is the plastic drive gear assembly inside the motor unit has shredded. They only last so long. (Dont know how old your unit is.)

This is what happened on mine. Got a replacement gear assembly for $40 at a garage door installers shop and replaced it. Problem solved. You can actually see a plastic "snow" inside the unit with the cover off where the plastic has shaved over the years. Takes awhile, but not that hard if you're mechanically inclined.

First though, I'd just check to make sure nothing is hanging it up when trying to close. I assume it goes UP just fine, and only gives you this hassle WHEN CLOSING. If all moves smoothly, take the cover off and look for the worn plastic gear and the infamous plastic "snow".

Posted on May 24, 2011

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Posted on Jan 02, 2017

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SOURCE: 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

Posted on Jan 25, 2009

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SOURCE: When try to use remotes or wall control to close

Your door sensors are most likely misaligned. Each of them should have a small light that is lit and not blinking. Tweak them until both are lit.

Posted on May 18, 2009

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SOURCE: Sear garage door wall mount contol light keeps blinking

Hold the button with the lock icon in for 3 seconds. This should toggle the unit off vacation mode and your remotes will work.

Posted on Jun 01, 2009

  • 3197 Answers

SOURCE: 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.

Posted on Aug 04, 2009

  • 60 Answers

SOURCE: Have to hold down keypad on wall to get door to

You may have a relay faulty or the wiring is connected wrong.

Posted on Dec 05, 2009

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The light in my Homelink system does not come on. Therefore it cannot be programmed.


The following are steps to programming a rolling code door opener to the Homelink transmitter in the Touareg.

The instructions in the owner's manual are correct, but after following them, my garage door installer and I discovered a few quirks and fixes for them.

It is important to park the Touareg in front of the garage door. Be careful not to park underneath it. rolleyes.gif

If your remote garage door transmitters are already programmed to your door opener, you need to do the following steps:

1. On the garage door opener itself, there is a learn button. Press and hold down the learn button until the learn indicator light goes out (approx. 6 seconds). (The learn button is near the antenna on your door opener.) By doing this, you have just reset the codes. At this point your remote door transmitters will most likely not work. This is o.k.

2. In the Touareg, press and hold whichever homelink button you want to program until the light above the homelink buttons slowly blinks. Continue to hold the button in and at the same time, hold your remote transmitter underneath the map lights and press the button. Continue to press both buttons until the homelink light rapidly flashes. Let go of both buttons.

3. You now have 30 seconds to press the learn button on your garage door opener. Press it once. The light will start to blink.

4. Go back to the Touareg, press and hold the homelink button you just programmed for 3 seconds until you get a blinking light. Repeat again. This time, it should open or close the door. The homelink button is now programmed.

5. Now that the homelink button is programmed, you now have to re-program your remote transmitters. Take the transmitters with you.

6. On the garage door opener, press the learn button, the light will blink. Now press the button on the remote transmitter. The light should stop blinking. Repeat the step if you have more than one transmitter. You should be all set. The homelink button should work in the Touareg and your remote transmitter(s) should also work.

In summary, the rolling codes in the door opener receiver have to be reset. For some reason, the Touareg has to be programmed FIRST. Then the remote transmitter units. If the remote transmitter units are already programmed, you will most likely not be able to program the homelink in the Touareg for a rolling code door opener.

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1 Answer

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...


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.

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I have a chamberlain liftmaster formula 1 garage door opener I could able to open the garage door using the remote. How ever I was not able to close it using the inside main panel big white color button....


Check to make sure the sensors in the doorway are pointed at one another and the small light on each one is lit and not flickering. If you cannot get both lights to come on you have a bad sensor.

Jul 12, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

The green light on the wall switch is blinking constantly yet it works to open/close the door. The remote does not work. Any suggestions?


Press and hold the lock button on the wall control for 3 seconds. The light will stop blinking and your remotes will work.

May 19, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Can open with remote, or wall-mounted button, but cannot use remote to close, and have to hold wall button down continuously (unit blinks when button is pressed and released, and stops closing until button...


If the main light is flashing 10 times when the door reverses you have a door sensor problem. Make sure they are pointed at each other and the small light on each one is lit and not flickering. Tweak them if necessary. If you cannot get the small lights to both come on you have bad sensors.

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1 Answer

How do you set the garage door opener for a 2004 toyota 4runner LTD?


You hold the remote close to the three buttons on the vehicle. You choose which button you want the remote to transmit to, and you hold it down. With your other hand, depress the garage door remote opener, and hold it very close to the 3-button assembly. Wait for the red L.E.D. light to blink slowly. If it does not blink slow, continue moving the remote around, until it does blink slow. When it starts to blink slowly, stop moving the remote around. Wait until the light starts blinking rapidly. When the light blinks rapidly, the process is complete.

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1 Answer

Door will not close with remote.


The code you are seeing with 5 blinks is "RPM sensor or motor overload." We can eliminate the motor overload because the door is trying to close. The RPM sensor is a small printed circuit board just in front of the motor. It's a snap to replace and is available at any good door opener company. They will know exactly what you are talking about if you ask for an RPM sensor board.

Aug 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sear garage door wall mount contol light keeps blinking


Hold the button with the lock icon in for 3 seconds. This should toggle the unit off vacation mode and your remotes will work.

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

1 Answer

Door opens on it own and light blinks


  • Stuck remote control button. Check all remotes. check LED on receiver.
  • Staples around Multi-Function Control Panel bell wire could be cutting into that wire. Remove wires from opener and test. Replace staples causing intermittent short.
  • Multi-Function Control Panel could have sticking door control push bar. Remove wires from control panel and test. Replace control panel if defective.

Dec 28, 2008 | Sears Craftsman LiftMaster Chamberlain...

6 Answers

Garage door remote won't open the garage door


The little button with a padlock on the wall control is a "vacation" lockout feature that disables the remotes. There should be a small LED on the wall control that is always on steady. When the padlock button is pressed and released the LED should be constantly blinking (indicating the vacation lockout mode is active) and your remotes should be disabled. The wall control will still operate the door. Pushing the padlock button again should make the LED stop blinking and restore the door to normal operation.

Jun 18, 2008 | Sears Craftsman LiftMaster Chamberlain...

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