Sensors on Craftsman GDO. They both are...one is green and the other is Amber...the door will not close completely unless you put just a min of downward pressure with your finger, otherwise it's stops about 12-18 inches from the bottom and goes back up...I thought maybe they were aligned properly, but, the amber one will not change colors regardless of how much I move it....just wondering of the amber light on the one side indicates that sensor is bad?

Thanks for your help.