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

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I have an Automatice Doorman model 455 garage door opener. I recently changed the battery for its remote control. How do I reprogram the remote control?

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Your opener is very old and not only are there no parts available but it is not a programmable system. Your best bet is to buy something more up to date which will be much safer to operate.

Posted on Jul 29, 2010

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Why wont my 3 remotes (hand held factory in remote)only work to open the door ? They no longer work to open the door.I did replaced the batteries and reprogramed, craftsman 3/4hp chain driven garage d


SOUNDS LIKE SOMEONE MAY HAVE PRESSED THE LOCK / VACATIONS SWITCH ON YOUR WALL CONTROL. IF STILL NOT WORKING AND THE LED IN THE WALL SWITCH IS NOT FLASHING TRY AGAIN TO PROGRAM YOUR REMOTES.

GOOD LUCK

STEVE

Dec 15, 2014 | Craftsman 3/4 Hp Garage Door Opener System...

1 Answer

Installed two new springs on automatic doorman model 455 and it won't close or open. chain will not move door where are adjustment screws? I think that may be the problem


Does it make a noise? Did it run before you changed the springs? Did you replace springs on opener or on the door? What adjustment screws are you looking for? Do you think they went out of adjustment when you changed the springs?

Sep 04, 2011 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

I have a Lift-Master Security remote garage door opener. It has a new battery. Can it be reprogrammed or do I have to replace the remote?\r\nThank you for your assistance. Model number971LM. It will...


ANY TIME YOU CHANGE THE BATTERY IN A REMOTE IT NEEDS TO BE REPROGRAMED.

ON THE CIRCUIT BOARD YOU WILL FINS A SQUARE BUTTON.
PRESS AND RELEASE NOW HOLD DOWN THE BUTTON ON THE REMOTE FOR ABOUT 20 SECONDS. WHEN YOU PRESS THE REMOTE THE NEXT TIME THE DOOR SHOULD OPEN.

Oct 21, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Does anyone know where I can get the 9 tooth chain sprocket (not the one on the unit) for a Doorman 455?


If you are looking for the sprocket that goes on the door end of the T-rail you can call any Chamberlain or Liftmaster dealer in the yellow pages. They might even sell you a used one off an old opener they have changed out.

Oct 08, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Automatic Doorman model 455 learn button location?


The button should be on the back of the motor unit. You may have to remove a light lens to find it.

Aug 01, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage door opener will not respond to security plus remotes


Reset the Liftmaster unit. There should be a red reset button on the unit in the garage. If this does not work, reset the breaker. Good Luck!

Jul 03, 2009 | liftmaster Chamberlain Garage Door Opener...

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...

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