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

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Chamberlin garage door opener has 3 terminals 1 2 3 2- photo eyes 1- pushbutton (doorbell type) 1-remote What is the correct connections?

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1 WIRE WITH RED TRACE

2 WHITE WIRES WITH NO TRACE

3 WIRE WITH GRAY OR BLACK TRACE

ALSO THE WIRE TO THE WALL CONTROL MUST BE WIRED CORRECTLY - DOUBLE CHECK - IT TELLS YOU WHITE AND RED TRACE OR 1 & 2

YES THE POLARITY MATTERS ON THE WALL CONTROL EVEN IF IT LOOKS LIKE JUST A DOORBELL BUTTON.

HOPE THIS HELPS

Posted on Oct 06, 2010

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1 Answer

I have a craftsman garage door opener that the photo eye stopped working on so I replaced them but upon hooking up the new set they do not light up either. What else may be the problem/solution ??


Make sure the wires are good and not shorted and that they are connected correctly. The solid white wires go to terminal 2 and the white wires with the black tracer go to terminal 3.

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

2 Answers

The garage door wall remote flashes and car remote won't work


Usually this can be corrected by programming the opener. Locate the smart/learn button on the back of the opener. It is just to the left of all those white wires. Hold the button down on your remote and then press and immediately release the smart/learn button. Do this for each remote you have.

Jun 30, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Light Problems on garage Door Opener


Its possible there could be a problem with the circuit board, the other possibility is that every time you break the beam of the photo-eyes located at the bottom of the tracks, the lights come on for another 4.5 minutes (if it is a chamberlin brand opener).

Feb 13, 2009 | Chamberlain Powerdrive PD422D 1/2 HP...

1 Answer

Liftmaster 1/3 HP opener won't close


strange, was going to say eyes not aligned but you say they are. try over-riding by holding down wall pushbutton or jumping from red and white terminals. Did you increase down force. Are limit switch terminals moving, If it hits one, it should go back to other,

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

2 Answers

Garage door opened, won't close


If you can press and hold the wall button and the door will go down, you have a photo eye issue. Check the photo eyes at the bottom of the door.

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

4 Answers

2 different openers stopped working by remote at the same time


Both the older genie and a newer chamberlain (3-4 yrs old) both run on 390Mhz frequency. sounds like you will have to change your receivers on both operators (365LM 315Mhz) then get 3 button remote so you can program both doors on one remote.

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

1 Answer

Multi-Function Door Control


Take off the two wires on bad of button and touch together, If it works, buy new panel or doorbell button. If not, make a jumber with a paer-clip and touch W and R terminals. If that works, replace wiring to pushbutton. (Did it ever work? If not Red and White wires may be reversed)

Aug 19, 2008 | Chamberlain Powerdrive PD422D 1/2 HP...

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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