Security light sensor for garage door opener has quit working.

tryonceJune 18, 2009

Never had any issues with our opener (Craftsman 1/2 HP model 139.53985) until I changed the keyless entry code. New code and every other function is working correctly except the sensor beams are not tripping the light on when they are crossed. The learn light on the motor unit flashes for a bit rather than lights coming on.

This has me stumped. Read through manual a few times and the only thing somewhat related is how to extend the amount of time lights stay on after opening door.

How can I get security light to work again?

Any advice, info or remedies greatly appreciated...

Thank you for reporting this comment. Undo

The LED by the smart/learn button always flashes randomly.

To have your lights come on automatically when you walk into an open garage you must START with the lights ON. To turn the feature on, turn the lights on manually with the wall switch then press and hold the LIGHT button for about 10 seconds until the motor unit light bulbs flash. Now, if the light bulbs are on, manually turn them off and then walk out through the open door. The light bulbs should come on.

To disable this feature, start with the light bulbs OFF and everything else is the same.

    Bookmark   June 18, 2009 at 3:18PM
Thank you for reporting this comment. Undo

Thanks for coming through on that one Don 1 2006. Appreciate it.

    Bookmark   June 22, 2009 at 12:21PM
Sign Up to comment
More Discussions
Snowblower help
I have a M t d model 317e760f118 track driven snow...
Craftsman 3/4 HP Garage Door Opener w/Extension
I just installed a 9.18450 opener with a track extension...
garage door remote opens but wont shut door
I have a 10 year old Craftsman garage door opener model...
Chamberlain Garage Door Opener receiver problem
For the past 5 years, my Chamberlain Whisper Drive...
2x6 strength? How much weight will a truss in my garage hold?
I want to build an engine hoist in my garage. I found...
Sponsored Products
Hinkley Lighting Nexus LED 6 in. Stem Bronze Finish
$15.00 | Home Depot
Celina Dark Rust Sconce with Silver Glass
$98.00 | Bellacor
Savoy House Transitional Foyer Pendant
Oceanus 1-lt Outdoor Wet Location Ceiling or Wall Fixture
LBC Lighting
City Club 3-lt Semi Flush
LBC Lighting
LEGO Star Wars Boba Fett Clock
$23.49 | zulily
Atlantis Satin White Large Two-Light Outdoor Wall Light
$439.00 | Bellacor
Outdoor Lighting. Outdoor Hazelnut Bronze Wall Sconce
Home Depot
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™