Door Opener Light Turns ON& Off Randomly
I have a Sears 414315-7A garage door opener built 03/95. The light on the opener will turn on for a few minutes, and then turn off - seemingly at random. Sometimes it stays on and the only way to shut it of is to open and close the door. When the door is opened, the light might shut off in 10 minutes or just stay on.
Everything else is fine. Door opens & closes properly and works from keypad, cars, and the wall switch.