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

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I lost power last night due to a storm, I have power however my garage door will not open or close. The motor runs, however it is not grabbing. any ideas on how to fix???

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Did you have to pull the emergency release and not return this into position. Pull the cord and move it until it clicks into position. Run the door and it should lock into place. If it does not reach this point. run the door to the open position and push the door back until it locks into the release.

Posted on May 26, 2011

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I have a Craftsman garage door opener Model# 139-18059. It is a wireless keypad and wireless remotes. I go through everything the tell me and stilll cannot get door to open or close. Is there a button...


Does the wall control not work? Have you checked the house circuit breaker? Is there power to the opener? Motors very rarely go bad. If you have had a power surge or electrical storms I would suspect the logic board. You can pull this board and check for missing traces on the printed circuit.

Jun 26, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My mother's garage door opener doesn't make any noise when the button is pressed. The light will come on and stay on for its predetermined time, then go out. Press the button again, the light comes on...


There are some possibilities here. If you have had electrical storms or a power surge it could have damaged the logic board. You would need to pull the board and check for burnt or missing traces on the printed circuit.

Or it could be that the door is stuck open. If that is the case the trolley is most likely jammed against the bolt just in front of the motor unit. You will need to loosen the chain enough to release the tension and then run the opener until the door closes. While the door is closed you need to locate the 'up limit' adjustment on the side of the motor unit. Turn this control 2 full turns in the opposite direction of the arrow printed on the cover. Tighten the chain.

If it isn't either of these possibilities post back with more clues and I'll try some more.

Jan 13, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftman Garage Door Opener (Mdl: 139.53992) stopped working today. We had bad storms last night with numerous brief power outages. Light on back is now flashing orange. I can't get the opener to...


I would first of all unplug the opener for at least 15 minutes and see if it doesn't reset. If not, pull the logic board and check for burnt or missing traces on the printed circuit board.

Aug 11, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Storm last night. Light comes on opener and the


HOLDING DOWN THE WALL BUTTON OVERRIDES THE SAFETY EYES.
WHEN HOLDING IT DOWN MAKES THE DOOR CLOSE PROPERLY THE PROBLEM IS IN THE SAFETY EYES.

ARE BOTH LEDS ON? - CHECK FOR A LOOSE OR BROKEN WIRE.
ARE THE EYES WIRED CORRECTLY?
ARE THEY AIMED AT EACH OTHER?

I WOULD RECOMMEND GETTING A SURGE PROTECTOR FOR THE NEXT TIME.

May 17, 2010 | Chamberlain Powerdrive PD422D 1/2 HP...

1 Answer

I have a Craftsman 1/2 hp garage door opener. Last night I had to open it using the emergency release due to power failure at house. Now it won't catch the door to open it although the chain mechanism...


That lever that the red handle pulls down is made to catch in the unlatched position. You can pull down on it again, and then pull the cord for and aft (parallel to the chain rail) and let it snap back up. Then either run the trolley or move the door and it will click back in.


Feb 13, 2010 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

How do I reset my garage door opener. It is a Coromaster 2000 motor. The closing and opening setting are out and the motor only stops due to resistance.


The Coromaster 2000 does not operate off limit switches. It has a quarter-revolution optical pulse counter. To re-program the open and close limits do the following: Ensure that the door is open at least a couple of feet. Press the reset button once or twice Short out pushbutton and common and hold until close limit and then release. Door should stop at your new close limit. Wait 5 seconds. Short out pushbutton and common and door will open. Hold the short until open limit and then release. Limits should now be set.

Sep 16, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman Garage Door Opener won't work after storm


Check to see if the trolley (the part that slides back and forth on the rail and is connected to the door) is jammed against the bolt just in front of the motor unit. If so, remove the bolt and run the door until it is closed. On the side of the motor unit there is an 'up limit' control. Turn this 3 turns in the opposite direction of the arrow printed on the cover. Be sure to replace the bolt.

Jun 16, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My garage door opener stoped working after a storm.


TRY TO REPROGRAM THE REMOTES TO THE OPENER - THESE UNITS CAN LOSE THE MEMORY DURING STORMS.

I WOULD SUGGEST ADDING A SURGE PROTECTOR AT THE PLUG IN TO PREVENT DAMAGE TO YOUR UNIT IN THE FUTURE.

Apr 19, 2009 | Sears Craftsman LiftMaster Chamberlain...

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