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

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I have 5yr old Craftsman keyless entry 139.53754 security+ with craftsman 1/2HP 315MHz opener model 139.53985D. I have lubricated all moving parts with silicone and made sure there are no obstructions. I have also used the blue tension adjusters but the door goes down three quarters of the way and comes right back up. I can't see why it would do it. The only way to get it all the way down is to hold the inside button the whole time it's closing, and even then it won't shut all the way some of the times. Anyone help?

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Posted on Jan 02, 2017

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SOURCE: I have 5yr old Craftsman keyless entry 139.53754

Sounds like your receiver which is part of the logic board has quit. The wall control is hard wired and doesn't use the receiver.

Posted on Oct 10, 2009

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SOURCE: Craftsman Model 139.53684 Keyless entry doesn't work

The remotes and keypad use the receiver which is part of the logic board.'t The button on the wall is hardwired and doesn't use the receiver. You might pull the logic board and check for bad connections on the printed circuit.

Posted on Nov 06, 2009

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The remotes and keypad use the receiver which is part of the logic board.'t The button on the wall is hardwired and doesn't use the receiver. You might pull the logic board and check for bad connections on the printed circuit.

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First try changing the battery in thh keypad 9V. if that dos not work just moving the wire coming from your opener towards your keypad. DONT CUT THE WIRE OR ADD TO IT. That should take care of it

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