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

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Liftmaster garage door opener problem

My liftmaster garage door opener won't operate down with the remote nor the wall switch. i have to hold the wall switch continuously to make the garage door go down and close. if i release the wall switch the door travels in the up position and the lights flash for about five seconds. i checked the safety sensors and the lights are both on ( sending & receiving). i thought that maybe my wiring to the safety switches may have had a short so i disconnected them from the connection @ the opener hoping this would narrow my search for the problem, but this did not work. same results. my area was in hurricane Ike and i had flooding in my garage. the sensors got covered with water. do you think they are faulty even though the indicator lights are working and i should replace them? i'm clueless at this time since i have checked the up and down travel limit ajustment settings also. what do you think i should do next?

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  • fees75 Oct 04, 2008

    I am having the same problem.

    Any help?


  • fmdeeply Oct 26, 2008

    I have the same issue. I have replaced the security sensors and tried all types of adjustments from the opener and nothing works other than holding the weall mounted button.

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Stop adjusting. you are doing right thing. unit will not run down w/o eyes so removing wiring did nothing. you gave clue when yu said they were folloded. buy new set of eyes.

Posted on Jan 15, 2009

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