craftsman 1/2 hp garage door opener
Small problem, opener works just fine, but the light wont go on when door is open and the sensors are triggered. Light does go on when either activated by switch on the control or when door goes up or down, just not when the door is open and the sensors are triggered. Used to work just fine, lost power and the problem has existed ever since. Have 2 openers 1 functions normal, and the other with this problem. Have reset and unplugged opener with no change. Traced the wires to sensors and all physically appears unfrayed. Any ideas / suggestions are appreciated.