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

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Open and closing problems w/ garage door

My door will close completely & the reopen about 5 inches or more. When I try to open the door it takes several times pushing the button, but the door still has to me in motion or it wont work at all. So It's consatnly up down up down til it finally goes up. Also I know it sounds crazy but the colder it gets the worse it is

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  • Mayer overhead door co.

    your first problem is an adjustment to the down door travel limit ,that needs to be adjusted manually ,by you ,then you have a pressure sensitivity issue ,that also should be adjusted , please let me know what brand you have and i can help you ,different machines have different adjustment controls ,I need to know the name brand / your machine sounds like an older model because the remote sensitivity is worn out also ! please let me know Sincerely Glenn

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First adjust the down limit setting. There is two white screws on the side of the opener. The one that says down needs to be turned to the less side. One full revolution of screw adjusts approx. two inches. Turn it down until the door does not close all of the way and the slightly turn it up until the door closes all of the way with stight pressure on the door. Next there are two blue screws on the back of the opener. they should be on the five setting on both the up and down screws.

Posted on Mar 05, 2009

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