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Keypad lights flash, wont open with code. Wall button and remote work.

Replaced battery in wireless keypad. keypad will still not work. lights flash, will not open to code. wall and remote work its like it doesnt recognize the pass code? Chamberlain garage door opener

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  • 39 Answers

You need to do a remote and opener re synch, because your rolling synch codes were lost when you replaced the batteries. Go to manufacturers web site for re program instructions.

Posted on Aug 12, 2009

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I have a liftmaster formula 1 1280R opener that works fine from the wall mount but all of a sudden both remotes and the built-in remote in my car stopped working. It is not the batteries in the remotes. ...


The motor/control unit may have gotten reset. It needs to relearn the codes transmitted by the remotes.

MIne has a "learn" button on the control unit. Press and hold, then press the button on the remote. Lights will flash indicating it has received and stored the code. Release button.

Check to see if the remote works now. If so, all three should be working. If not, dig up your manuals.

Feb 28, 2013 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My wireless keypad stopped working. I replaced the battery. It worked 1x and hasn't worked since. I'm able to program remotes. The keypad is backlit and flashes when I enter the code or try to program it....


I would make sure the battery contacts are clean and not corroded. Otherwise a new keypad is most likely the answer. Just FYI the keypad will still work when the wall control is locked.

Sep 28, 2010 | Sears Craftsman LiftMaster Chamberlain...

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HAVE SEARS/CHAMBERLAIN "91"MODEL 53615SR AND NEIGHBORS OPENER KEEPS OPENING OUR GARAGE DOOR BUT OUR OPENERS WONT OPEN HIS


Look at the LED light next to the SMART/LEARN button on rear of the motor unit. You may need to remove a light lens cover in order to see it. If the light is flashing rapidly this means you have a stuck button on one of your remote controls. Take the batteries out of each remote control. When you remove the batteries from the bad remote, the light will stop flashing. This remote needs to be replaced.


If one of your neighbors remote controls is inadvertently programmed into your receiver, you door will open when their remote is activated. If this happens you will need to clear out your receiver and reprogram your remote controls. Press and hold the smart/learn button for 6 seconds or until you see the small LED light near the button turn itself off. If the above steps have been followed and the symptoms continue, there may be an electronic short in either the wall control button or the receiver logic board. In this case, remove the wall control wires from terminals 1 and 2 on the motor unit. Should the symptoms persist after the wires are removed, replace the receiver logic board. If the symptoms stop with the wall control wires removed from the motor unit, replace the wall control button, and the wires leading to the wall control button.

Dec 21, 2009 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Liftmaster 1/3 HP. Remote and wireless keypad stopped working.


Sounds like the reciever for you wireless devices is not working?

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

1 Answer

Craftsman 1/2 garage door wont open with remote


If your wall control is the 3 button type make sure the lock function has not been turned on. You can tell if it has because the light in the wall control will be flashing. If this is so then you need to hold in for 3 seconds the button with the lock icon. If this is not the case then you most likely have a bad logic board which contains the receiver.

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

1 Answer

Liftmaster problems with the wireless keypad...


If you reset your code by pressing the smart/learn button and then keying in your code and pressing enter and it still doesn't work it has just quit on you. Make sure if you replace it you get the same model number.

May 03, 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 )

Dec 29, 2008 | Sears Craftsman LiftMaster Chamberlain...

2 Answers

Neither remote control will open door but wall mounted button wil


Make sure the code set inside the remote is the same as in the main reciving unit code.

Dec 06, 2008 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

TRANSMITTER IS "DROPING" CODE


This is a very rare condition that I have come across. I believe it's related to a power surge. Replace back-board.
The only other thing I have seen is that someone will replace the opener and not replace the wall button and you only have a doorbell type button instead of the wall button that came with the newer system which has 3 buttons on it one of which is 'lock'.
When the button is flashing the opener is in 'lock' mode and won't 'listen' for any remote control at all (incase your on vacation and someone is trying to hack your opener code) but the wall button will still work.
You need to reprogram the keypad again like you reprogrammed the remotes.

Jul 01, 2008 | Sears Craftsman LiftMaster Chamberlain...

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