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

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WHEN I INPUT THE CODE IT FLASHES QUICKLY DOOR DOES NOT OPEN AND REMOTES DO NOT WORK ANY IDEAS

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Try reprogramming the keyless and the remotes. Sometimes yhe operator forgets all the codes.

Posted on Jan 04, 2009

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Every time my neighbor opens and closes their garage it opens mine and closes mine, how can I change the frequency


Most garage door controllers these days use a 'rolling code', which will change at every press.. But it sounds like both garage doors were unlucky enough to generate the same primary starting point.. Most builders will check that each door is running on its own code before
giving out the remotes at handover..
This is quickly fixed by re-running the setup program..
(If this is a new installation of units, you may've each been given the duplicate of each other's remote..
Most programming sequences are printed on the door opener, but if you still have the user guide, check the button press sequence & timing as some code/learn buttons require 6-10sec & others will flash..
Always replace with new batteries & avoid using the cheap everyday saver type because they'll quickly drain & flat batteries will cause most problems..

Apr 20, 2016 | Garage Doors

1 Answer

My garage door opener remote does not work.I have a craftsman garage door opener manufactured in 1999. The garage door opener remote panel has a green light on and will open the garage door. The remote,...


Make sure the green light in the wall control is not flashing. That locks out the remote. If it is press and hold for 3 seconds the lock button on the wall control. It could just be that your remote has failed.

Dec 10, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Sears 1/2 horsepower chain drive garage door opener (circa 1993) would not open with remote and light on back of opener is flashing quickly. Tried reprogramming the remote, but had no success and the green...


It sounds like you have a remote with the button pressed or broken so that it is on all the time. Remove the batteries from your remotes and check that light. The rapid flashing is an indication that it is receiving a signal. Make sure you don't have an old remote in a drawer somewhere.

Sep 26, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Can't reset remote keypad


Press and immediately release the SRT button and then walk over to your keypad and key in any 4 digit code you like and press enter.

Aug 25, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Craftsman GDO - Remotes not working


I think this is an easier way to program. Press and hold the button on the remote and then press and immediately release the smart/learn button on the rear of the motor unit. Do this for each remote you have.

Jul 28, 2009 | Sears Craftsman LiftMaster Chamberlain...

3 Answers

Remote missing on old dominator garage door opener


This is the most complicated way I know of coding a remote and I am a tech. who does this all the time.
Turn power off. Wait 3 sec's & turn back on. Quickly press program button on back of box twice. Lights will flash, bottom light will stay on. Press program button twice, & No. 3 light will start flashing. Press and hold your remote button until light stops flashing. Code will be accepted.

Apr 11, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Door close with wireless remote entry but will not open


It sounds like this remote has lost its program! you will have to reprogram it!I hope this helps ya!

Dec 15, 2008 | Sears Craftsman LiftMaster Chamberlain...

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