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

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I have two Security+ 3-function remote controls 139.53753 neither of which will work. I have attempted the instructions as given in the Craftsman manual for the 315 mhz garage door opener. Any assistance?

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Don Maggard

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The remotes you have are on a different radio frequency. They will not work.

Posted on Jun 23, 2011

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