Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+

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One of the remotes manages both doors instead of just one

I have three remotes that came with my 139.53824SRT 1/2 hp Craftsman garage door openers. One of them opens and closes both doors

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Don't use that one! Seriously, you need to wipe out all codes and reprogram your keypad and remotes.

Posted on Jan 15, 2009

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Don't know Mod. No. lost installation manual, approx. 5 yrs. old Need installation manual.


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    [PDF]GARAGE DOOR OPENER Model 3265 1/2 HP ... - LiftMaster

    www.liftmaster.com/.../en.../tucmanuals/114a3044.pdf Chamberlain GroupFasten the manual near the garage door after installation. .... This garage door openerhas been designed and tested to offer safe service provided it is installed, ...

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    Craftsman 1/2 HP Chain Drive Garage Door Opener - Sears

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Feb 03, 2016 | Garage Doors

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How do I change the code for the door opener and remote. I have a craftsman 1/2 HP garage door opener. I have door door openers and one remote with three buttons.


You cannot change the code of your remote or opener. It is set at the factory. If you have lost or have had a remote stolen and need to eliminate its possible use you can erase the memory of your opener by pressing and holding the smart/learn button for 6 seconds. That button is on the back of the motor unit near where all those white wires go. Now you need to program your remote by holding the large button down while you press and immediately release the smart/learn button.

Mar 13, 2010 | Sears Craftsman LiftMaster Chamberlain...

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I have a craftsman garage door opener (1/2 hp) won't close proper


Check your door sensors. They have probably been bumped. Tweak them until they are pointed at one another and the small light on each one is lit and not blinking.

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

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