Garage Door Opener Light Won't Shut Off And Keeps Blinking. 99.9% of the time it will be a bad circuit board. Sometimes the opener light will stay on and not shut off or continue to blink.
This Chamberlain garage door opener light would flicker. The wall button wouldn't work nor the remote controls. Diagnosing this problem was pretty easy.
Changed the Logic Circuit Board and that solved the problem!
Chamberlain has a fantastic warranty and tech support team. If you have your serial number and model number tech support can tell you if the part you need is under warranty.