[Richard]

Thank you for the pics! Although one year apart, your setup is completely different than mine. The concepts are the same, but the physical arrangement of the limit switches is quite different.

I think you have the switches correctly identified. On the retract limit switch, the wire colors change at the connector to blue and black. I am thinking that is correct.

On the retract limit switch, the exercise is to take a small screwdriver, insert it between the button on the limit switch and the bracket the button presses against. You are checking to see if the switch is physically adjusted so that the switch button is pressed inward to close the contacts. If it is physically activated, then check the terminals in the connector plug to ensure continuity between the two. That will tell you if the switch is defective. If it isn’t activated, loosed the screws that hold the switch to it’s bracket, and slide the switch until it clicks.