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

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I AM HAVEING A PROBLEM WITH THE UP AND DOWN CONTROL ON MY CRAFTSMAN GARAGE DOOR OPENER

CRAFTSMAN GARAGE DOOR OPENER 2HP 4104315-7D. I LOST THE MANUAL. I AM HAVEING A PROBLEM WITH THE REGULATION ON THE UP AND DOWN. I HAVE TRIED TO SET BUT HAVE HAD NO LUCK. THERE ARE TWO BLUE SCREWS IN THE BACK OF THE UNIT AND TWO OTHER SCREWS ON THE SIDE FOR SETTING THE CONTROL. I SEEM TO HAVE A PROBLEM WITH ADJUSTING THE DOOR TO OPEN OR CLOSE.CAN YOU GIVE SOME HELP? THANKS RICK.

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GOTO CHAIMBERLAIN.COM THEY MAKE THE SEARS/CRAFTSMAN UNITS
THE MODEL #'S WILL BE DIFFERENT BUT THE ADJUSTMENTS ARE THE SAME

HOPE THIS HELPS

Posted on May 27, 2010

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Craftsman model 139.53918d. Why doesn't it turn on lights when garage door is opened or closed?


Free Craftsman Garage Door Opener User Manuals ...

homeappliance.manualsonline.com > ... > Household Appliance Craftsman
Products 1 - 50 of 60 - Craftsman Garage Door Opener 139.53515SR - I/2HP.Craftsman Garage Door Opener User Manual. Pages: 0 Saves: 0. See Prices

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1 Answer

Craftsman 1/2hp garage door opener works fine to open door but to close I have to hold button down. If not, door won't move and lights flash 10 times.


10 flashes mean sensors are obstructed... something is in the way of the door or they are not facing each other. Clear the obstruction or realign the door and it will work.

Aug 27, 2014 | Craftsman Garage Door Opener 1/2 HP Chain...

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Why is Door control button is blinking on craftsman 1/2hp garage door?


It is in lock mode. press and hold the lock button for 3 second and it will unlock.

Aug 27, 2014 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman 1/2hp garage opener Homelink must be under unit to work


Have you tired reprogramming the remotes to the opener?

The opener receiver board may have failed, which happens. You can order a new one from Sears or other places on the Internet, and they are fairly easy to replace.

Once replaced, you will need to program the receiver to you remotes again.

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

2 Answers

I have a 1/2hp craftsman opener and it wont stay down sometimes it does and sometimes it doesnt


This can be caused by a door that is closing just a bit too far. On the side of the motor unit you will find the 'down limit' control. Turn this just a bit in the opposite direction of the arrow printed on the cover. Some tweaking may be necessary to get it just right.

Oct 14, 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...

1 Answer

Craftsman 1/2hp garage door opener does not go down to floor


I'm no expert, but on a previous door opener I had (don't know the brand), the side adjusting screw basically adjusted a limit switch, which was located inside the plastic housing (where the motor is). I was able to remove the housing, figure out which limit switch was actually being contacted "too soon" on the way down and adjusted it while watching it.

Just a suggestion, you might take a look.

just keep your hands out of the way of the chain and sprocket if you do take the housing off. .

Mar 03, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door won't close with remotes


Yeh, read manual. Do both sensors have led lit. try aligning. you have safety beam problem,

Jan 14, 2009 | Sears Craftsman LiftMaster Chamberlain...

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