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

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Lights flicker and door stops. both up and down.

This is a 1/2 hp on a 16 foot door. when opening or closing the lights on the opener will flicker and the door will stop. I have adjusted the torque setting to the max setting and have also changed the 110 volt outlet it is pluged into. The door runs freely when opening it manualy. This unit is a craftsman and is only about 1 1/2 years old. FYI I live in northern Iowa and have not had this problem until the temp went below zero.

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Do you have a duplex outlet that unit is plugged into? Try plugging a lamp into other outlet and see what happens to it when you run door, watch torque settings. they effect safety.

Posted on Jan 15, 2009

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