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

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Liftmaster mod 1245R (1999) has indicator light blinks 5 times. Door will not operate from hardwire button. Tried unplugging unit to reset but same 5 blink sequence returned. Held button in to reset but no difference. Only get clicking sound at control unit when hard-wire button pushed. Need help! Thanks.

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  • daviapc Nov 15, 2009

    Don, Thanks for help but door was not in open position. It was unattached to trolley that was in the full down position. The chain seemed tight when I connected the door to the trolley so I loosened the lock nuts and took some tension off the chain. Tried turning the travel controls and pressure controls to see it would operate but it only clicks when hard-wire button pushed. Thanks, Paul

  • daviapc Dec 31, 2009

    Thanks.
    Problem solved by replacing logic board that was zapped by lighning surge. Door was down when zapped, so trolley was at full door closed position. Logic board red/amber light would only blink 5 times and click when wall button or remote pushed. Attempts at resetting unit and jumping terminals as directed by mfgr did nothing leading to conclusion that logic board was likely fried. I Replaced logic board and opener worked like new. Suggestion for future: If any opener unit conks out while door is in full down position, strong suspicion should always be lightning or power surge damage to logic board and not replacement of the motor as I kept being told by FixYa Gurus. Best regards, Paul

  • marty metzger May 11, 2010

    Have no idea what you are saying. "get clicking at control unit". What is Control Unit? What indicator blinks 5 times; wall control, logic board led or saftey beam?

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If your door is in the open position and the trolley is jammed against the bolt just in front of the motor unit you need to remove the bolt and then run the opener until the door closes. While the door is closed locate the 'up limit control' on the side of the motor unit and turn the control a couple complete turns in the opposite direction of the arrow printed on the cover.

Posted on Nov 14, 2009

  • Don Maggard Nov 14, 2009

    Post back if you have problems

  • Don Maggard Jan 27, 2010

    Check the trolley.

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IF THE MOTOR MOVES 6-8" REPLACE THE RPM SENSOR. IF THE MOTOR DOESN'T MOVE AT ALL (AND IS NOT OVERHEATED) REPLACE THE CIRCUIT BOARD.

Posted on May 28, 2010

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SOURCE: Liftmaster mod 1245R (1999) has indicator light

The trolley is most likely jammed against the bolt just in front of the motor unit. Remove the bolt and then run the door until it is closed. Now locate the 'up limit' control on the side of the motor unit. Turn this 2 complete turns in the opposite direction of the arrow printed on the cover. Be sure to replace the bolt.

Posted on Dec 07, 2009

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1 Answer

Liftmaster mod 1245R (1999) has indicator light blinks 5 times. Door will not operate from hardwire button. Tried unplugging unit to reset but same 5 blink sequence returned. Held button in to reset but no...


The trolley is most likely jammed against the bolt just in front of the motor unit. Remove the bolt and then run the door until it is closed. Now locate the 'up limit' control on the side of the motor unit. Turn this 2 complete turns in the opposite direction of the arrow printed on the cover. Be sure to replace the bolt.

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The LED flashing 5 times is the code for "RPM sensor or motor overload". Usually if it is the RPM sensor - which is a small printed circuit board just in front of the motor - it will run a few inches and then reverse. I doubt very much it is the motor. I would pull the logic board and check for loose or missing traces on the printed circuit. Especially if you have had any electrical storms or power surges.

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