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

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Photo eyes inop, opener still operates

I have a Sears HBW0777 opener that still works despite blocking the photo eye sensors. The lights stay green even when blocked. Tried to realign, no change. One of the lights just dims a little when blocked. It's an oldie but a goodie. I installed it about 14yrs. ago. I wouldn't worry so much about this but I have young children. Thanks for any input!

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  • Anonymous Jan 15, 2009

    I installed it back in '95. The eyes were part of a kit from Sears. The housing is black. I will go look at it to get more info off it tomorrow - too cold tonight - minus 16 and dropping.

  • marty metzger May 11, 2010

    do not know this unit number. how old is it. what color is motor housing. may have add on eyes. standard eyes became law in 1993. If add on, they are not smart and that is one reason they stopped offering them. might consider a new unit for yur kids sake if eyes are add ons.


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If eyes came with opener, that is good. clean off lens. are both eyes leds lit. try aligning again. New eyes avail for $30 if you want to try.

Posted on Jan 15, 2009

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Dusk to Dawn Light Adapter

Might work. Might not. Depending if the eye can sense light and dark from that position. If area is shaded, then the sensor might think it's dark earlier in evening. If the area is dark, then sensor will not do as well, or might stay ON full time.
If the outdoor light shines on nearby surface, the reflected light might cause photo eye to blink on-off throughout night.. or not function as expected.
You can add separate photo eye to any light, and choose location for photo eye.
Add a comment and say what you discover, or for followup wiring question.

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