Question about liftmaster Chamberlain Garage Door Opener Transmitter 300MC

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Lost electricity and had to use red cord to manually open Liftmaster Formula 1, not can't get it to open with remote. How do i reset after using manual open function?

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  • britfuture Aug 19, 2010

    the remote doesn't need to be reset. after i used the manual open cord .. i push the remote, the motor runs then just clicks. Door won't open. how do i get the manual cord to reset out of manual mode?

  • britfuture Aug 19, 2010

    thank you, but I want to know how to reset the manual cord after it is pulled, not the remote control.

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Www.liftmaster.com/pdfdocs/A2537M.PDF
Please find above your user manual, it shows you what to do in there, now below is the manufacturers website use this if you need to contact them for spares or advice.
www.liftmaster.com/

Posted on Aug 19, 2010

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Hello. To reset the remote, get the remote and a step ladder. Climb up so that you can reach the rear of the garage door opener motor. There you will find a small button. Holding the remote in one hand, push that button on the back of the opener motor and then push and hold the remote button that you want to program for three seconds. Then get down from the ladder and try the remote. It should operate the door opener once again. If it does not, repeat the programming steps listed above. J.

Posted on Aug 19, 2010

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1 Answer

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The motor/control unit may have gotten reset. It needs to relearn the codes transmitted by the remotes.

MIne has a "learn" button on the control unit. Press and hold, then press the button on the remote. Lights will flash indicating it has received and stored the code. Release button.

Check to see if the remote works now. If so, all three should be working. If not, dig up your manuals.

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--W/D--

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1 Answer

My garage door opener stoped working after a storm.


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I WOULD SUGGEST ADDING A SURGE PROTECTOR AT THE PLUG IN TO PREVENT DAMAGE TO YOUR UNIT IN THE FUTURE.

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