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

1 Answer

One of the lights on the eye is yellow instead of green.

One of the lights is yellow on the eye's that mount on the frame. as a result my garage door will not close. how do I fix this?

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  • Don Maggard May 11, 2010

    You say your door will not close. What actually happens when you try to close it?

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  • Master
  • 3,197 Answers

Increase the down force on the rear of your motor unit.

Posted on Jun 04, 2009

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1 Answer

The lights on the bottom are green and yellow, are they both supposed to be green?


No the yellow or amber light is the sending eye and the green is the receiver.

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My garage doesn't come down


They need to be pointed at one another to work properly. If the light still doesn't come on when you tweak it then your sensor is bad and needs to be replaced.

May 14, 2010 | Sears Craftsman LiftMaster Chamberlain...

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Chamberlain garage door will not close


See if both sensors stay lit until the door reaches the closed position.

If either light is off or flickers the door will go back up. Try aiming the eyes very carefully. If they are aimed properly. Check the wiring if you move the wires and the light flickers you have a bad connection. If the lights don't come on you may have a broken wire.

Mar 11, 2010 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

My liftmaster formula one has one sensor light green and the other yellow. no amount of realignment helps this. the garage door will bounce back up when it hits the bottom and won't stay shut. have tried...


One photo eye should be yellow and the other one green. The problem seems to be your down limit to be set too far. When you stand facing the door behind the operator the limit adjustments should be on the left hand side under the light cover. The down limit is the one closest to the door.

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

1 Answer

New eye sensor not lighting up when installed


Make sure the sensors are pointed at one another. Also one of them should say "sending unit" and the other is the "receiving unit". Did you buy them new and from a dealer?

Jun 10, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Pressing remotes the door won't go u[


It sounds like you have the lock enguaged. When it is flashing it locks out all remote access. Hold the lock button for 3 seconds. The green light should go solid. On the issue of closing, it is most likely a safety eye issue. Hold down the wall button. If it closes it is the safety eyes. Holding the button overrides the safety eyes. Make sure that thelight on both eyes are both lit.

Jan 27, 2009 | Sears Craftsman LiftMaster Chamberlain...

1 Answer

Garage Door Opener Lights


Some craftman operator don't have that feature. Are both photo eye lights green? Feature not available. If the photo eyes are yellow and green feature should be avilable. The operator needs to have a three button wall station. With the light on the operator off press and hold the "light" button for about a minute until the light flashes.

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

1 Answer

I have a liftmaster door opener and one of the saftey sensors always has a yellow light instead of green.


That is correct and not a problem.  One light should be yellow which means power and one light should be green which means the lights are lined up. 

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

1 Answer

Chamberlain Liftmaster Pro. Garage door Problems closing


The sensor eye - or more likely, the other end, the sensor light - probably got knocked out of alignment. The eye should have an LED on it - possibly one that glows green when it's ready to close or red when it's obstructed or out of alignment. Try adjusting the light until the LED on the receiver glows green.

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