These obstructions can include things like spiderwebs or dirt that got on the outer lens of the It has acted up a couple times before, but the last two days it has been awful. Use the navigation buttons to scroll to LIGHT SETTINGS. The light a … The Garage Door Opener Light Comes On, But Won’t Turn Off! My Craftsman 41AC150-2 garage door opener stopped working when the door was half way opened and all that happens now when I push the remote or the mounted button is a clicking at the unit. Help! If you find that it’s still not working, or you still don’t see a solid yellow light, look for obstructions. However, the two most common reasons include a problem with the lock button and malfunctioning safety reversing sensors. Turn the motion detection feature OFF/ON, and turn the entry light feature OFF/ON. Give your garage door opener a try. Lately our garage door opener light keeps turning itself on randomly. Having your garage door light blink continuously is not only annoying, it’s also a sign that there is something wrong with the mechanism. There are several reasons why your garage door opener is doing this. I set my craftsman for 2-1/2 which was right for me. Set the duration for garage door opener light to stay on after operation. Source(s): Master electrician and electronics grad. Why is Select a range of 1-1/2 to 4-1/2 minutes. Sears Craftsman garage door openers have an important safety feature that prevents the door from closing when something or someone is in the …