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

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Chamberlain Liftmaster Pro. Garage door Problems closing

I have a Chamberlain Liftmaster Professional Garage door opener 1/3 horse power. We are having trouble closing the door with the wall mount as well as the remotes. The only way I can seem to close the door is with the wall mount and then I have to press the wall mount and not release until the door is fulling closed or it will stop. Opening seems to work ok, but does not always work correctly. I have looked for obstructions, but there are not any. I made sure the "obstruction sensor eye (?)" was not dirty. Any suggestions?

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  • Anonymous May 16, 2009

    I have to hold the opener in the garage down in order for the door to close or else it just jolts and the light starts to flash. The remotes will no longer work 

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The sensor eye - or more likely, the other end, the sensor light - probably got knocked out of alignment. The eye should have an LED on it - possibly one that glows green when it's ready to close or red when it's obstructed or out of alignment. Try adjusting the light until the LED on the receiver glows green.

Posted on Dec 07, 2008

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