Sears Craftsman garage door openers have an important safety feature that prevents the door from closing when something or someone is in the … 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. Having your garage door light blink continuously is not only annoying, it’s also a sign that there is something wrong with the mechanism. 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. I set my craftsman for 2-1/2 which was right for me. However, the two most common reasons include a problem with the lock button and malfunctioning safety reversing sensors. The light a … Help! Why is Give your garage door opener a try. Select a range of 1-1/2 to 4-1/2 minutes. If you find that it’s still not working, or you still don’t see a solid yellow light, look for obstructions. Turn the motion detection feature OFF/ON, and turn the entry light feature OFF/ON. Source(s): Master electrician and electronics grad. Use the navigation buttons to scroll to LIGHT SETTINGS. The Garage Door Opener Light Comes On, But Won’t Turn Off! Set the duration for garage door opener light to stay on after operation. Lately our garage door opener light keeps turning itself on randomly. There are several reasons why your garage door opener is doing this.