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

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Garage door does not open with either the door switch or the remote control. I have confirmed that there is power to the unit however the lights do not come on either. It is a craftsman 1/2 HP Model # 1398858D. I have also checked that the eyes are properly alighed and clean

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  • Anonymous Jul 29, 2008

    same problem

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Why does it go up or down a foot then stops, we have push remote or button at least 6 times before we can finally get it to go up. It is a craftsman 1/2 also

Posted on Jan 10, 2010

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Posted on Jan 02, 2017

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I have a Sears Model 139.53879 (3-Function Remote Control) garage door opener. It's about 12 years old. The remote controls open the door fine but the remotes do not close the door; it has to be closed...


Sounds like a problem with the safety photocells, to confirm locate the where the safety input is on the opener and bridge out the terminals ( not the supply voltage terminals) if the door then closes the photocells are the problem.

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I have a Quanton (3212) garage door opener. The


Hi,

We need to reset the opener unit on the wall. Unplug the wall unit. Wait for atleast 2 min. Then plugin again. Try the remote. This could solve your problem.

If it is still not working, you need to re-program the remote control to the power head.
Use the following steps:
Press the "PROGRAM" button on the garage door motor head unit once. A light "PROGRAM STATUS" will tell you that you have done so. The light will be on for around a min. In this time press the button on your remote. The light will turn off. Try opening the door with the remote now. Repeat if required. If this does not work, you will need to contact the dealer.

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Garage door will open with remotes, but not with the wall switch


Sure sounds like the wall control is bad. Very common problem.

Jun 12, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opener will not open or close with remotes


Put new batteries in the remotes.
Check the DIP switches in the opener
Check the dip switches in the remotes. They must match the opener.

Feb 01, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Garage door only opens with wall unit


a component in the wall unit is failing , that makes the conection happen when the remote signal is recieved , ( it is recieving the remote signal but not sending it out to the control circuit for the motor )

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1 Answer

Garage door opener


Pop open the cover and check for loose wiring. Also check to see if the capacitor is still good that powers the motor.

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