NO Garage door sensor lights
I have a Craftsman 1/2 HP garage door opener with two remotes and one key pad entry. The model number is 139.53914D. The remotes will open the garage door but not close it. The sensor lights are no longer on and I believe this is causing my problem. I just replaced both of the sensors and wired them correctly. I still do not have any lights on the sensors and it did not solve the problem. I have continuity on both wires from the receiving yellow sensor back to the opener. I have continuity on the solid white wire from the green sensor back to the opener. I do not on the red one. I am assuming because it goes back to the wall controller. I have zero volts to the green sensor. I do get some voltage at the opener at the connections for that sensor.
What is the problem with no power to the green main sensor?
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