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Why door is opening without being activated by remote opener or inside garage opener;something is activating the open/close command;ther is nobody around or a neighbour that may interfere with his doo

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  • 42 Answers

I had a similar problem. I discovered the illuminated door bell switch I used as the inside door control would activate whenever the wall on which it was mounted had a heavy vibration from door slamming or thunder. Could this be your problem too?

Posted on Nov 10, 2014

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Posted on Jan 02, 2017

lobsterman72
  • 91 Answers

SOURCE: Door will only close when held down

That normally happens when the sensors aren't aligned. Both sensors have led lights on them the yellow/orange one will stay on all the time the green one will go out if it cant see the other sensor. Possibly theres a wire that's broken or the other sensor is really out of alignment. Check every inch of wiring from the sensor to the opener, remove wire nuts if present and check the connections. The wires that are used are small, solid and can break easily. Also see if there's a staple that's too tight, move the wire abit where it's stapled and look for damage.

Posted on Jun 27, 2008

SOURCE: programing garage door opener remote

ok crystal,calm down this is an easy one! first locate the smart button on your openers , next you will press and hold down the smart button until you see an indicator light above it shut off, while your holding that button the light will be solid ,Now your ready to program your remotes ,first programm one side by taking each of your four remotes and pressing the smart button on machine then pressing the button on the remote you want to program,by doing that you will notice the lightbulbs on your machine shut off and go back on , This is an indicator that your machine has accepted the code , now do it with the other three remotes , after you,ve programmed all four ,go over to the other machine and repeat the process but this time you have to choose another button on your remotes since you,ve programmed all four remotes to the same button on each remote ,just choose the bottom button on your remotes this time to keep them seperated , hope this helps you and it is as easy as 1-2-3 your owners manual will describe exactly the same ,i know because i,ve installed over 27,000 machines working as an installer for sears, please leave a nice feedback rating if i was able to help you, good luck,Sincerely Glenn Mayer

Posted on Apr 01, 2009

  • 3197 Answers

SOURCE: Remote Control closes garage door but does not open

It sounds like a case of your keypad losing signal strength enough that it cannot transmit through the closed door. If a new battery doesn't do the job a new keypad will.

Posted on Sep 12, 2009

  • 3197 Answers

SOURCE: Trying to clear the codes from my Garage Door

In most cases, when a garage door opens or closes by itself, or when you find your door open, upon returning home, the problem is due to a short somewhere. This short is most likely to be in one of two places: either in one of your transmitters or in the wall button or its wiring.
When there is a short in your garage door transmitter, you will often find the garage door is up upon returning home, even though you know you closed the door when you left the house. A short in your transmitter causes a continues signal to be sent. As you are pulling out of the driveway the garage door closes fully and appears to stop, but as the carriage and arm run past the down limit and hits the header bracket it reverses, and the door begins to open, just as you start driving off down the road. You come home to find the garage door is up, as if someone else had opened your door. The best thing to do to troubleshoot the garage door problem is remove the batteries from your transmitters and try operating the door from the wall button. If the problem is intermittent, you may want to do this for a day or two to eliminate the transmitters as the culprit.
If the problem persists, try removing the wall button wire at the motor head to ensure it is not a short in the wire to the button, then try operating the garage door with the transmitters only. If it stops the problem, replace the wires and test the wall button. It is a process of elimination.


Posted on Mar 29, 2010

  • 3197 Answers

SOURCE: garage door opener makes a clicking sound when

If the opener is making a clicking sound when it is running the chain is too tight. Post back with the number of flashes from the light.

Posted on Dec 14, 2010

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Our door didn't go down completely last night. Unplugged and replugged. It closed after that. However it also closed randomly when we went to back our cars out. Any idea if this is something going bad...


Could be the logic board is going out. Also check all of the garage door opener remotes and make sure that is not the cause. Some people will keep and extra remote in a drawer and something will touch it and activate the garage door opener. Or sometimes people keep the remote in the drink holder in a vehicle and that will activate the garage door opener.

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Try reprograming the opener to each remote, if this doesn't work then the command/radio module in the opener is damaged and needs to be replaced. Hopefully you can find one or you will have to replace the whole garage door opener. Good luck.

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Something could be blocking the electric eye.they are down at ground level on both sides of the door

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With the garage door up pull the release cord to disingage the garage door it self in the up position. You can skip the disengaging step, But,It saves ware and tear on the motor.

Then using a step stool you will find limit adjusting plastic slots/screws on the side of the opener.

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I would turn the left screw clockwise 1/2 turn or less. then activate the remote opener. noting which way the latching mechanism moved. and so on.

It may take a few adjustments with this proceedure to get it perfectly closed. Then activate the remote to re-engage the garage door it self.

Also, LiftMaster has a web site that you can check out.

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There are certain models that had only a door bell type wall control and didn't have the lock and light functions. You may have one of these and someone has replaced the wall control with the three button model. If it did work in the past and has quit it is most certainly the logic board and is expensive to replace.

You say it is STILL stuck in the "lock" mode. If you cannot use your remotes you need to program it. Find the smart/learn button just to the left of all those white wires. Press and hold the button on a remote while you press and immediately release the smart/learn button. Do this for each remote.

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If you hold the wall button down and the door closes the problem is photo eyes.

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If you have a keyless entry it will still open the door with the vacation lock on. I assume you tryed this or don't have a keyless entry. There is no other way to activate the operator. Sorry but you will have to make a way in.

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