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

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Liftmaster will not open

From wall mount and remote, when pressed the light flashes 5 times. Checked the sensors, and have unplugged the opener, but will not reset.

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If you are saying the main light on the opener flashes when you try to close the door you need to check the door sensors. Make sure they are pointed at one another and the small light on each sensor is lit and not blinking.

Posted on Jun 28, 2009

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1 Answer

My Chamberlain Liftmaster Formula 1 garage door (2002) has stopped working. The power is on -- light turns on when I push the wall mount button. But the remotes no longer work. The door does not move. ...


The light by the learn button may be sending a diagnostic code. See if it is flashing a number of times, pausing and then repeating. Count the flashes. Is your door stuck in the open posititon?

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My Lift Master remote does not work. The wall mounted unit will open and close the door, but the remote control does not. I've changed the battery with a 1a battery from Radio Shack- but it still won't...


Check the wall console. If it has a lock button and the LED is flashing, the GDO is locked. None of the remotes will work, only the wall button. If it is locked, press the lock button and hold for a couple seconds and release. The LED should stop flashing, and the remotes should start to work.
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The code for 5 flashes is " Motor overheated or possible RPM sensor failure. Unplug to reset." Also if the door is stuck in the open position it could be the trolley is jammed against the bolt just in front of the motor unit.

Feb 07, 2010 | Sears Craftsman LiftMaster Chamberlain...

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Can open with remote, or wall-mounted button, but cannot use remote to close, and have to hold wall button down continuously (unit blinks when button is pressed and released, and stops closing until button...


If the main light is flashing 10 times when the door reverses you have a door sensor problem. Make sure they are pointed at each other and the small light on each one is lit and not flickering. Tweak them if necessary. If you cannot get the small lights to both come on you have bad sensors.

Feb 02, 2010 | Sears Craftsman LiftMaster Chamberlain...

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Garage door will not open close with remote


Press and hold for 3 seconds the button on the wall control with the lock icon.

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Garage opener not responding with remotes, keyless pad, or wall console. Can hear it click but nothing happens. Green light in opener blinks 5 times. When i reset the green light stays on until i try to...


UNPLUG UNIT TO RESET.

IF IT STILL FLASHES 5 TIMES AND MOVES 6-8 INCHES REPLACE RPM SENSOR.

IF IT STILL FLASHES 5 TIMES AND DOESN'T MOVE REPLACE LOGIC BOARD.

Apr 17, 2009 | Sears Craftsman LiftMaster Chamberlain...

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Craftsman Garage Opener Clicks only and LED blinking 5 times


Just fixed this problem tonight. Had the 5 blink/flash thing. Opened it up and saw that the motor wasn't spinning so it wasn't a bad rpm sensor. Jumped the red to black and then the blue to black to verify motor worked. At that point assumed it was the logic board not telling the motor to start, but I could hear the click of the relay. Pulled the logic board out and noticed a solder joint that had failed directly behind one of the relays. Resoldered that joint and the garage door opener worked again like a dream. Hope that helps someone else.

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REMOTE CONTROLS WILL NOT WORK-WALL BUTTON FLASHING RAPIDLY


Does your wall switch have a lock feature? By pressing the lock button, the remote control is disabled. A flashing light indicates this feature has been activated.

To deactivate, press and hold the lock button for 2 seconds. The flashing should stop and your remote should work again.

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SEARS/CRAFTSMAN 53628SRT Not Closing properly


sounds like the safety door sensors are at fault,also did you reprogram the remotes by pressing the smart button on the logic board,when the safety sensors are bad the door will reverse to open state.you can pully the rip cord to manualy close the door untill you solve the problem.

Sep 04, 2007 | Sears Craftsman LiftMaster Chamberlain...

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