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

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Craftsman 75th anniversary garage opener

Light on back is blinking 5 times the door wont open but the light will come on, do you think it its the logic board. I think it was struck by lighting.

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IF THE DOOR MOVES 6-8 INCHES THE PROBLEM IS THE RPM SENSOR IF IT DOESN'T MOVE AT ALL THE CIRCUIT BOARD IS TOAST.
GET A SURGE PROTECTOR FOR THE OPENER - THIS SHOULD SAVE THE BOARD THE NEXT TIME.
HOPE THIS HELPS

Posted on Jun 17, 2010

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The unit is displaying a sequence of 5 flashes with the amber light. When I try to open the door, it will only go forward and backward aprrox. 1 ft. Any suggestions on what I should do?


Craftsmsman 1/2 HP opener indicator light blinks five times ...

? 0:29
https://www.youtube.com/watch?v=AvXJd-tYCJ0
Apr 28, 2012 - Uploaded by bship452
Then showing the amber indicator light blinking 5 five times, stops ... push remote to operate opener, you hear a clicking sound from the unit. ... Show more .... blink 5 times (looks almost alike) If I forced the garage door closed, ...Missing: sequence

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ths.gardenweb.com > Home Forums > Garages/Workshops
Jun 27, 2006 - Now, I cannot get the light in the sensor at the door to come on. ... the green LED went OUT about 1/2 way up the door opening sequence. .... other is working (I don't recall if it's green or amber, but know that it is lit.) ... Their is also a green LEDflashing 2 times every 5 seconds or so at control center of unit.

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Nov 20, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

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1 Answer

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1 Answer

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If the LED is blinking randomly it is normal. If it is blinking rapidly you have interference from somewhere. To eliminate any interference start unplugging anything electrical and watch the LED. Some things will interfere that you wouldn't even think of like a heater in an aquarium. Check everything especially in the garage.

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1 Answer

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UNPLUG UNIT TO RESET.

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