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

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Only opens when remotes are close

I have a Sears Craftsman 1/2 horsepower garage door opener. My house was built in 2003. The remotes worked good until about a week ago. I have changed the batteries and re-programmed the keypad and the remotes. They work as long as you are standing within five feet of the opener. Help please before i yank the whole thing down.

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The problem is in the receiver on the logic board. You will have to replace the logic board. You can get a replacement part at searspartsdirect.com. Thanks BB

Posted on Sep 16, 2010

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I think the adjustment mode is on.

For example, that's from Craftsman manual:

""
Setting the Force
The force setting button is located on the left panel of the motor unit. The force setting measures the amount of force required to open and close the door.
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""

Actually, you should just read carefully your garage door opener unit's manual.

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Have you tired reprogramming the remotes to the opener?

The opener receiver board may have failed, which happens. You can order a new one from Sears or other places on the Internet, and they are fairly easy to replace.

Once replaced, you will need to program the receiver to you remotes again.

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Sometimes the sensors will be aligned closely enough that the logic board will turn on the receiving units light but it will act like yours. If you look real close at the light you will see that it is flickering ever so lightly. Tweak the sensor so the light is on steady.

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