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

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I have a Chamberlane Lift Master Professional I went to open it yesterday and it would not open. When the button is pushed the unit just clicks and the controller light is blinking 5 times then pauses and then blinks again 5 times. The two sensers are lite one green and one yellow. The door opens freely when operated manually. I have unplugged and plugged in again and no difference. Any suggestions?

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The code it is flashing is "RPM sensor or motor overload." It is not a door sensor problem. The RPM sensor is a small circuit board just in front of the motor.

Posted on Mar 25, 2011

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Posted on Jan 02, 2017

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