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

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My liftmaster pro started to open and then stoped. Learn LED is flashing 5 times. Pushing openerer, I hear a click but no motor noise. Also, pressing the light button does not turn it on. When I pull plug, flashing light goes off until I press the open button and it starts flashing.

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The LED flashing 5 times is the code for RPM sensor or motor overload. The RPM sensor is a small circuit board just in front of the motor.

Posted on Nov 17, 2009

Testimonial: "This is the same helpful information I found on the internet. The internet went further to the SOLUTION is to pull the power cord to reset "

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Chamberlain Liftmaster GDO just clicks, no lights no open/close


Pull the logic board and check it for burnt or missing traces on the printed circuit. Thunderstorms love logic boards.

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I have a liftmaster 1/2 hp garage door opener and when I push the remote and hear 2 clicks from the motor, and the led light flashes 5 times. I have unplugged it and the system resest, but then does the...


UNPLUG THE UNIT TO RESET
TRY TO OPERATE MOTOR. IF IT STILL FLASHES 5 TIMES AND THE MOTOR MOVES 5-6 INCHES, CHECK THE RPM SENSOR - A LITTLE CUP ON THE MOTOR SHAFT WITH A SENSOR.
IF MOTOR DOESN'T OPERATE AT ALL MOTOR MAY BE OVERHEATED - WAIT 30 MIN. & TRY AGAIN. IF THE MOTOR STILL DOESN'T MOVE IT IS MOST LIKEKY A BAD CIRCUIT BOARD.

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  1. Clear out anything previously programmed into the in-car system from the factory by holding down on the 2-outside buttons simultaneously, until the in-car LED starts flashing rapidly. This may take up to a minute (in most cases, the key should be on auxilary, and/or the car door must be shut).
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If this doesn't work your car and homelink may not be compatible.


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Try programming your opener this way. Locate the smart/learn button which is just to the left of all those white wires. Press and hold the button on your remote while you press and immediately release the smart/learn button. Do this for each remote. Do not hold the smart/learn button in as it will erase the memory and your remotes will not work.

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