Question about Sears Craftsman LiftMaster Chamberlain Garage Door Opener Wireless Keypad Model 976LM Security+
When i snap in all 4 tabs on the top button of the contron unit, i can not push the button. it appears to be stuck. if i leave the bottom 2 tabs out the button works but it falls off easily. is there a spring in there taht i am missing? i cant find an exploded view of the control unit.
dooropener model 139.53918D
motion detecting control console model 41A6317
The problem is the tolerance between the plastic piece and the cover. when you screw in the top screw it tends to flex the board so it is tight against the black tabs that touch the switch. The board can be too tight toward the front and when the cover is installed it depresses the switches. I removed part of the tab that holds the board in place where the top screw goes in and removed part of the melted plastic that holds the board in place. Also make sure you have nothing behind the board so it can move back and forth.
Posted on Dec 12, 2009
Try calling this number and ask your question. They are the manufacturer and just may help you.
Technical Support Hotline at (800) 528-5880
Posted on Jul 25, 2009
a 6ya Repairman can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Repairman (only for users in the US for now) and get all the help you need.
Posted on Jan 02, 2017
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